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[Music]
and then I think I'm done I don't have
any further announcements and we can
start with the first talk so let's
[Applause]
[Music]
go
[Music]
all right let me quickly bring up your
slides uh it's I'm I'm a bit Rusty it
has been a few
years all right current status of post
Quantum and so on please go ahead
okay it's working um I'm Elie and I will
give a brief update on the ongoing
standardization process on post Quantum
uh cryptography and the upcoming
standards and protocols which is uh
partly done by ietf and uh other
standard uh
corpuses and um yeah um it's just an
quick update on what to expect next year
uh if you're having some systems if
you're wanting to switch to postquantum
cryptography if you have questions drop
me an email or invite me via Matrix or
meet me at Congress um yeah just talk to
me you can download the slides on my
website um you can also just go to L.D
and there's a link to the slides and
it's also in the pre-t talks and a short
disclaimer I'm not a like uber Hecker uh
academical cryptographer um I'm doing
itot security at my day job and um
currently
post cryptography is also a part of it
and so I I thought I I would give a
quick update on
this so we have several um upcoming
standards uh by the ongoing nist
competition which will be FIP standards
um it's one for key encapsulation one
and two for signing uh which are fips
203 204 and
205 um the first one uh is the crystal
skyber algorithm which will be used as
um key exchange algorithm and the other
ones are for signatures uh or for
signing stuff and because n fought uh
two signing algorithms are not enough um
there will be another one released next
year it's called Falcon V
algorithm and uh n announced last year
uh another competition for additional
assigning algorithms so you have plenty
to choose um they differ slightly in um
signature sizes key sizes so it's more a
decision of what would you like to use
the crystal delium one is uh a pretty
convenient one which you can use for
most
applications and uh the additional ones
will be uh 40 candidates are on the
review right now in round one and will
it will take I I don't know maybe five
six years like the ongoing
standards um ietf is also taking care of
uh standardizing stuff for postquantum
Readiness um so it's just a brief
overview um if you have if you go to my
slides you can just click the links and
you will go to the ietf drop
so we have star 4 TLS we have SSH we
have Ika we have pki and certificates
and because uh we like all like
signature algorithms there are another
two ones which are already standardized
by ITF but they are rather complicated
to use so you can use them but they are
stateful hash based signature algorithms
and they are a little bit complicated to
use so um just don't use them I think or
if you have some Corner cases where it
where it is uh really needed um
otherwise you just wait for the uh
upcoming standards um and there's also
some helpful RFC drafts and also the um
getop repository which lists all on
ongoing ITF
work we have some uh real usage of post
Quantum Cy right now already um op SSH
um is post Quantum ready uh with a
combiner um hybrid algorithm we have
Rosen pass which is a um add-on for wire
guard we have signal messenger Google
Chrome and there also of several
libraries which you can use for
implementing um algorithms and yeah some
software products and uh projects are
waiting for the final standards which
are released next year by nist or fips
uh but several ones are already um
implementing stuff and just for testing
um but it's also production grade ready
and in usual it's uh combiner stuff so
it's not only uh the postquantum
algorithm but it's combined with a
classical um algorithm which is safe for
now and so you have both if the post
Quantum one
breaks um and yeah that's my last SL um
general advice on postquantum
cryptography stay up to date there's
really lot things to come next year use
postquantum cryp free where possible and
go hybrid where you can and uh because
for some data it might be a problem uh
if it's captured now and decrypted once
uh or in 100 years nobody knows um
cryptography post quantum computers are
there um know your infrastructure and
your endpoints and where cryptography
especially the postquantum prone
asymmetric one is used and don't
underestimate migration complexity and
the general advice like uh don't run
your own libraries and crypto um also
apply for postquantum C fee and yeah
that's it um if you have questions just
ask uh right away let not now and yeah
thanks bye
thank
[Applause]
you on on point very nice thanks all
right next up is uh the zorus
computer what
different
yeah off
there hello I'm swy and I like to do uh
lightning talks and retr Computing so
I'm trying to excite other people people
for retr computing as well but old
Hardware is getting harder it's harder
to get and it's also had some quite
obstacles new hardware on the other hand
is way too expensive just for tinkering
so I was thinking about how to build a
computer for tinkering so it should use
an original 6502 since this was the CPU
I've grown up with it should be very
easy in every thing way you can think of
so it should be open source and it
should be sheep which makes it more a
toy than a full featured comp computer
and so I came up with the idea to use a
microcontroller as the complete shipset
to do the rest of all the the thing of
the computer except for the
CPU so this uh taking a look at the 65
CO2 CPU that I'm using um Counting the
pins that I really require I came up
that uh 30 would be rather sufficient I
wanted to use the Rasberry P Pico
microcontroller however the board only
offers me 26 gpio how however there's a
solution to this just use a Chinese
clone which offers not only 30 GPO pins
but also 60 megab of Flesh which come in
handy and it also offers another nice
feature within limitations the gpos
gpios can be used with five
Vols my architecture is really simple
just like a' 70s computer I just have a
passive back
plane where I put put in a board with a
CPU I put in another board with a
chipset put it all together and just
called it a
computer so my the first thing that I
did with this one was to replicate an
already known computer I chose the apple
one because it's a very simple
architecture um the simplest computer I
know so far based on the 6542
architecture the video C generation
circuit which was half of the PCB could
be replaced just by using uh the USB
terminal for an user
interface the Second Step was to build a
machine or a core for learning which and
uh allows you to watch the bus on every
s single cycle the CPU takes so you can
think of it like a pure Perman logic
analyzer using the
CPU and the third thing uh that I did
was um of course I wanted to build my
real own
computer with some features that um the
maybe the old machines didn't have
something like a random number generator
which is really hard to do on an 8bit
machine um or something like a storage
um interface so I uh already storage
included in the machine which is also
nice that you can save and load stuff
from
it of course a computer needs a name it
uses a raspberry pie Pico to run like an
apple so of course this name has to be
some kind of fruit originally I wanted
to go with lemon because if life gives
you lemon make a computer out of it
however um this term was already used by
an apple two clone so I stuck with the
term Fugal beer in Germans which is
zorus because my mama told me don't eat
those they are poisonous so don't use
them for the primary purpose but as a
kid I had a lot of fun playing with the
berries
where are we right now so we've got two
different machine language monitors to
work with we've got even an operating
system CPM which was one of the first
operating systems originally written for
microcomputers has been ported over from
the Intel 880 by some crazy Scotsman to
the
6502 and the kernel that's already
included has already quite some nice
functionality inside but still it's uh
growing for the future ideas I wanted to
support typical environments like basic
or forth to the machine where also help
is appreciated and for Hardware um since
I'm also doing a lot of demo scene stuff
I want to make this into some kind of
demo scene platform so I need some
graphics Hardware I need some soundboard
Graphics is already in the working some
friends of mine are discussing how to do
sound so we're getting
somewhere and if you think you uh this
sounds nice visit me after the lightning
talks in the Vintage computing area I've
got parts for 10 machines so you can
solder your own you've seen the pcbs
it's easy to
solder and um yeah that's it thank
you thanks a
[Applause]
lot next up is reliable radio
communications where's my mouse my mouse
is here
okay um
there we go Mo I'll show you how to get
more range and reliability out of common
radio transceiver modules or more
generally out of any self synchronized
serial link so many startup projects
consist of a microcontroller receiver
and the transmitter and here we have no
antennas so the RF energy communicates
over the ground plane and we get no
experience how the medium actually
behaves the better approach is to use
the real Anna and separate power
supplies and now we're in for the
ride we have to expect a lot of problems
because of the noisy nature and if you
look at the orange curve the fastest
bort rate we see that we need an an
amateur radio language on S to 7 to S9
levels so really loud level to get
reliable performance without too many
errors and how bad is it there's only
for every bit we yeah roll the dice and
only one happy pause was every bit
correct gives us a correct packet and
that means we for a payload of 64 bytes
we have to have the loudest level at S9
to get only 95% of the packets
correctly so how can we combat this we
can use the forward error
correction and where we multiply our
incoming signal yeah on the transmitting
side we multiply our bit stream with a
matrix expanded and add redundancy so if
we so we'd have a chance to um
reconstruct the signal at the
receiver so the problem was this is that
the um Matrix can still give us a run of
all zeros and ones and that breaks the
hard where reconstruction of the clock
signal
and but I set out searching and found a
possible an old approach
to yeah to com the to shorten the most
to shorten the longest run length and we
can simply do this by swapping the last
two columns of every half in The Matrix
and add an alternating pattern so this
replaces the common approach of xoring
with a PUD noise sequence and this come
yeah we have run length really gets
shorter and what's missing for a whole
system is a frame synchronization marker
that tells us where the packets starts
on the receiver
side and for this the extended gay code
doesn't use all of this code words and I
can just go around looking for the one
that gives us the best
correlation and this is the code it's
the simple multiplication and ever frame
synchronization
detection and this is decoder from burle
cam from NASA
GPL so we got this running on a 721 on a
cortex m0 like the rasberries
microcontroller and we achieve um about
2 and a half megabit per second which
fices for all modern the ism transceiver
modules so if you want to help me or I
can help you contact me on the Hub or
per email thank
you thank
you next up is inventory OSS inventory
and
PLM so most Hardware most Hardware
people here know the problem you have a
lot of boxes with a lot of components
and every time you design something you
ask yourself do I own it how much do I
own it is it even good anymore so we
need a solution and inventory management
like inventory the project uh I am I'm
presenting today we do Parts management
we do parameters so free form parameters
that you can assign and we do stock
tracking and a lot
more I'm Matias I'm from Austria and I
have been one of the core contributors
since
2021 uh the inventory project is MIT
licensed uh we started in 2017 we have 3
to five active people they do most of
the work 75 contributors and 50
translators we are always searching for
translators so it's very hard to
translate and proof read a lot of
languages so if you can do that we would
appreciate that invent.org
uh the main components of the system are
simple we have a server client
architecture that where you host a
central API service and then you can use
a web interface you can a web front end
you can use an Android or iOS app you
can use python apis or anything that can
speak open open apis spe so most
languages uh we have some Core Business
objects Parts a part can you can have a
lot of one part so that's stock then you
can have orders you buy stuff you sell
stuff you get you sell stuff to a
customer he returns it that's a return
order and you have builds where you
build your uh parts from other parts and
models can all these models can be
extended without touching the code you
can have strongly typed parameters where
you can do SI conversation and stuff so
that you are always in the right uh
format and you have Loosely typed Jason
metad data where you just dump your
stuff so we don't care what's in there
and you can have plugins without
changing the core code uh we Enterprise
ready because a lot of Enterprises run
us like small companies but Enterprise
so SSO all the stuff you can deploy to
Dean andun with a build-in package we
have dock imag install scripts a digital
ocean image if you like that stuff I
don't but I build it uh we support most
best practices in the community so we
have an open ssf best practice batch and
uh we should get silver batch in the
next one or two months we still have to
do some uh Dynamic testing to achieve
that 90% code courage uh enforced code
Styles all the good stuff that you need
to deploy us and we always open for
feedback if there's a standard we should
support please out uh we have plugins
for Shopify Mouser for different pcbaa
uh companies we do loan management with
VI plug-in there you can uh connect to
label printers PR zebra and everything
that do cups so most printers but only
on Linux and we can do notifications
with emails like and 50 others via a
price there is Kat integration with the
upcoming 8.0 release uh or with nightly
but you shouldn't run nightly for your
production stuff please don't please
don't we had problems uh and there are
various CLI tools we are starting to
implement vendors into the core code but
it will take a year or two so there are
some great tools by the community to do
to do that via the API right now we need
you you don't need to code you can
report bucks you can translate or proof
read you can write documentation you can
develop if you know some of the
languages you can fund or you can just
communicate around the project
invent.org SL contribute please come we
we welcome everybody so uh we have some
friendly projects in the community
namely part DP very cool project
basically the same function set but just
one developer and in PHP so great shout
out to Yan and kids Bas they do like
Open Source Hardware project repos
online where you can just buy your uh
your open source project so it's it's
much easier to to start in the community
and they are doing some great stuff
around standardization of sharing stuff
we are planning to integrate their
standard in the next one to three months
I have the pr already ready but I need
to do some testing so uh contact me or
the project in.org or mg.com and the
slides are on 37c free. mg.com please
reach out uh my tech number is in the 30
on the last page thank you
[Applause]
thanks all right next up is Sun juice
collector for our maker
space
uh yeah hello everyone um maybe some of
you heard about balcony solar power
stations and um yeah I just wanted to
present you our project how we uh
implemented a solar power station in our
maker space so in Fry BG uh we like to
put fry in front of everything so we
have fry Burger we have fry Spiel and of
course we have fry lab which is the
maker space and there we wanted to
implement the solar station because we
wanted to have our own green energy for
our um
workshops so because we didn't have an
idea how this will look like in the
future I asked Chad gbt how does that
look like on the fryb um it cannot even
spell the name
right okay so uh first what you need uh
what we did is we took some old solar
panels which are from old public
buildings and then we reused them for
our maker space so you can even put
those panels on your balcony if you like
uh there are also some workshops in
fryborg and I think all over Germany how
to do that if you are interested in that
reach out after this lightning talk to
me um so this is the concept so we have
all our solar panels we have a current
um we have the current inverter um which
puts the DC current into AC current we
have our rooftop and we have our
Workshop which then gets the energy from
the solar
panels so this is the rooftop we wanted
to implement it to the rooftop that's a
little bit more on the right but that's
is very old and there's asbest in it and
so we thought okay maybe it's better to
use the rooftop here um so what's always
important check if the old panels are
working so that's what we did with a
multimeter we measured everything was
working fine okay so we continued so
some of the solar panels had uh some
yeah broken plastic at the back so we
have a laser cutter because we are a
maker space
so we fixed that and um then continued
on putting the solar panels on the
rooftop maybe uh consider doing it a
little bit more safely than we did it
but uh it worked out looked pretty cool
in the end and uh this is the final
result so yeah now we are collecting the
Sun juice or like the um the energy from
the Sun and we of course also collecting
data on how much energy we are
collecting ing so this is um a little
bit older I showed that on our Christmas
party but um yeah so we collected so far
230 kilow um and are still collecting
this data and also wanted to show it to
everyone who is part of our club um
later on but this will be another
project then so this is how C gbt thinks
it looks like when a cat is uh putting
the solar panels on our maker space
um just yeah to summarize this and in
the end I also wanted to uh give you two
links so if you are interested on
putting old solar panels on your balcony
and collecting energy for your own home
which is pretty neat and super cool
thing to do because otherwise these
solar panels will get thrown away and
not reused um then you can um use the
solar panels and uh maybe visit some
workshops visit the website b or look up
and if you can remember that and um then
there's also the fryb so if you are from
fry Bor or from the land as we also like
to call our bundesland then um you can
also check fra and maybe visit us on
Wednesday because then we are open to
the public and everyone can visit us and
we are happy to show you around thank
you thank
you
[Applause]
[Music]
next up is youth hacking for
Freedom hi I'm Bonnie from the fre after
Foundation Europe and I have a slightly
different topic today I have a
programming competition for a few of you
might be still that age and some of you
might know others for for teenagers from
14 to 18 yeah I will quickly introduce
you to youth hacking for Freedom so
what's youth hacking for Freedom it's
the FSF programming competition kids can
develop their own project they come up
with an idea we always help there are no
limitations in the ideas the only
requirement it needs to be free software
in the end we also help with this we
have some monthly calls of course and
there we teach them about free software
and now to the question who who can
participate people between 14 and 18
they need to be from Europe not just the
EU so UK is still included
and you don't need to have an European
citizenship you just need to live in
Europe so also refugees are welcome to
join
us this is where you can register
registration is currently open and it
will also be possible to do late
registration but then the co and the
programming period will not be extended
so if you want to register go to this
website and now for the programming
period it will start on the 1st of
January so next week and then you have
six months until the 13th of June in
2024 during those times we have monthly
calls in those monthly calls we have an
input session for example on how you can
upload your project to get how you can
work with G um how you can license your
project as free
software and and yeah of course we also
help with questions we have a legal team
in the background at FSF who is always
there and happy to answer questions and
yeah we also have some talks and input
sessions about motivation and that
projects are never really finished and
after this input session you have the
chance to network with the other
participants in smaller breakout rooms
meet European teenagers from all over
Europe and yeah just meet like-minded
people and there have been friendships
built during this competition so it's a
nice thing for you to also meet other
people and now yeah that's I already
said we provide help with lean licensing
question we can't provide help with the
programming so but you're always
encouraged to ask others for help and to
ask your teachers people you know so
it's you're never on your own you can
like the spirit of free software reach
out to others and build their
Community now for the the most important
thing of course is have fun for the
prices oh sorry the first winner will
get 4,000 around €4,000 and the second
price will the second place will be
2048 48 and third to six the third is um
still like in the normal ranking and
then we have three special prices that
will be €
1,024 yes so and of course follow us on
social media there you will stay updated
on all the competition and everything
yeah that's basically it you can
register here and I would also like to
point out that we will be in the FSF
Booth so you can visit us there if you
have any questions that's at the bis
assembly and I'm around just ask me
anything you want and yeah it's a very
nice competition for you to join and
meet others that's it thank
you
next up is T time
travel yeah hi I'm Oliver I'm a software
engineer from Berlin and I like to code
enclosure and closure script but today I
want to tell you about a little journey
uh involving old files uh because about
two weeks ago I saw um these lecture
this lecture series by Dr can tech for
beginners and this was recorded in
February 1981 and that was fascinating
for me for several reasons at the time
Tech was still kind of brand new but it
was already used in some of the campuses
around the country and in the US but
also in some companies and uh secondly a
lot of the students that uh participate
in this were not actually compiz
students they came from other fields
they also want to have beautiful papers
and so on and even some uh students from
outside from companies like serox and so
on um and secondly um most of these
students wouldn't have a computer right
this was a time there were no laptops or
anything so fascinating fascinatingly um
can would go through these lines explain
all the the macros all the commands
people would take notes go to the lab
try them out bring the print backs back
print outs back and then discuss them uh
for that purpose can holds up this
handout that he printed out um and he
also did that in Tech obviously is this
tool and he explained uh this this T
explained how how they do that but the
first order of business was was going
through this explaining all the things
wrong in this Tech out in this hand out
because the do they they were very proud
of called do sorry printer called do in
room 221 was broken and that was set up
to do this Tech these Tech out um print
outs so he needed to tell them the new
commands how to do this and all these
kind of things um and uh right after
that he just went to the source of um
the handout itself and then went line by
line what does this command do what does
this macra do and so on later on the
section on the right there you see a bit
more complicated things with mathy
things and around this time I was like
well it would be really useful to have
this file to actually follow it along
and have that handout in my hand so I
did some very very naive searches of
what are the strings I saw in this text
maybe someone had copied a PDF somewhere
and uh that didn't work at all and and I
gave up quite quickly because it was a
long shot anyway until day three when he
went through some error locks that
students had printed right and you can
see here on top errors. TMP and so on
and this gave me a new hope because I
crafted some other search strings and lo
and behold there was a match here and
you can't probably see it on the slide
but on the top right that is exactly one
of those outputs and it's from the 25th
of 1981 it's one of those students that
did that and so what is the site right
it was very excited it's called s Dart
and sale stands for sandord AI lab and
this is basically an archive for the
last backups from the tapes in 1990 that
uh someone someone took um and it's
maintained by Dr Bruce Gund Bard and
it's F fascinating because it's a time
capsule from files from 60s 7s ' 80s and
uh it has loads of stuff on Research
files uh code documentation faculty data
um and even memos and email from that
time so long story short I went through
that and there it is that that is
exactly the hand. te that he went
through in that uh thing 43 years ago
which was exciting to me I don't know
whether you feel about that the same way
but I downloaded this download some
auxiliary files and tried to Tech it
with to today's Tech didn't quite work
had to adjust a little few few little
things but after a while it actually
does run with the turn Tech words and uh
as you can see here now I have this
exactly this handout that he held in his
hand I can print that out and I could go
through it with him together and uh that
was magical to me uh that's why I share
it and the main message I have here in
conclusion is that text files are
awesome right this is this works because
it's not binary I couldn't have read
this if it was some binary uh uh thing
that I couldn't couldn't have searched
through um you can also edit them with
any editor text editor make adjustments
uh search them automatically or have
some other scripts run through them um
and yeah secondly it's awesome I think
to me that you can typ set this and
print it 40 years later uh some of you
may remember a time when the new word
version meant that all your other
documents now look all wonky um and the
third one is if you want to follow this
um this uh lecture series uh you can
come to me I have the hand out you can
print it out and uh if the if DOA is not
still back maybe wait till Friday uh
because it should become back at some
point Thank you thank
you so next up is pornography feels
better without Tech
Giants okay um hello everybody my name
is Alexandro polidoro I am an
independent lawyer and digital rights
Advocate and today I'm I want to spend
the next five minutes with you to talk
about why pornography feels better
without Tech Giants so let's talk about
porn porn is a multi-billion industry I
didn't specify the numbers here the
current estimation is around 45 billion
but some say a b less and say a bit more
even up to 90 and the reason why it's
difficult to quantify is because there
is a lot of submerged business that is
not exactly happening in broad daylight
uh it represents a huge portion of the
whole traffic uh of the worldwide web
some says 8% some say 4% once again it
wasn't really meaningful to put any data
because there is no uh clear Source but
Point here being porn is a big deal and
it has also an Ever growing impact on
our culture we know it because in the
past decades this flooding of por of
free
pornography um available everywhere on
the web of course is impacting our
culture and for some people especially
the Young Generation it has become one
of the main sources of sex education um
of course pornography is not an easy
topic uh it's not an easy topic uh to
talk about first of all because there is
a huge resistance from uh law makers
journalist sometimes even funders to be
honest uh because it's it's it's a
difficult topic and it is also Pol
politically controversial uh setting
aside for a second the ultra
conservative groups that of course would
want to ban sexual representation
because they believe that it's immoral
there is also an issue in in the more
Progressive Community even among
feminists it's not clear if pornography
is actually an instrument of repression
or is actually a way to express uh uh
each uh personal sexuality um but most
importantly and this is what I would
like to stress uh in in the remaining
minutes is a is a field that is
dominated by Tech Giants right now there
is a huge bottleneck of this sector uh
with few uh players basically dominating
the market and setting all the trends
that are influencing the life of those
who inhabit this field and the PO
narrative so everything that revolves
around porn is very important especially
for four categories to what I've had the
the opportunity to to observe digital
rights Advocates and this is clear it's
not only about accountability of tech
Giants but it's also matter for instance
of data Protection Law uh think of these
dystopian solution dystopic solutions
that have been presented like asking
people to show an ID when they access
pornography so that the age can be
verified uh but it's also important for
workers rights Defenders there is a huge
stigmatization of this field of work and
it's very dangerous and unsafe for the
people that that work in this field just
to carry on with their life um there
there is of course the huge issue
related to gender-based violence and the
survivors especially for instance of
image based sexual abuse and these other
topics um and sex tech Builders because
of course there is also the constructive
part think of ethical porn platforms or
small and uh medium um Enterprises that
want to build sect toys and stuff like
this um but there is one way to fight
against Tech Giant in porn and one of
them is to sue them and as a lawyer of
course I wanted to bring this up first
because we actually sued pornub you may
have heard about this porn platform they
used to be the 12 most visited website
uh on the planet the loit is ongoing but
they've already lost two positions now
they are the 14th most Vis website on
the planet correlation is not causation
but it's interesting to say that since
the lawsuit has been started they
actually already changed their website
kind of basically running for cover from
from from our accusations and there is
also another way and the other way is of
course to El them accountable and in
this specific case I wanted to refer to
this campaign that we launched directed
addressed to the European commission um
because the idea was to leverage the
digital Service Act this new European
regulation that you may have heard of
and to ask p platforms to be uh
mentioned among the very large online
platforms uh which will now uh become uh
yeah exposed to Major due diligence
obligations um of course there is so
much more that that can be done and for
this is all something that we're
discussing in this new multi-stakeholder
Coalition that I started so if you're
interested to know more feel free to to
reach me later or or or um ask around on
internet also there is a lot of Mater
regarding that and if you would like to
know more this is a small nerd quote for
the Sci-Fi fans out there I don't know
if you if who of you will get it well if
you want to know more we're going to
have a self-organized session later
tonight it's going to be yeah we're
going to talk about porn late at night
it's at stage H so ground floor and um
yeah feel free to to to join us we will
talk about a little bit more about the
litigation and about the advocacy
campaign that we have done and thank you
very
much thank
you
all right just a quick announcement
since we are well in time um the yeah
the talks from about 5 20 20 5 are going
to be in German so if you need a
translation if you are in the hall and
need a translation or if you listen on
the stream uh check out C3
lingo.com 20 5 then we are going to have
German
talks so uh now I closed my file manager
which means that I have to bring it up
again and uh close the slides instead
all
right uh talks there
too next up is vuda
events here we go thanks hi hi I'm
Matias I'm from Austria um which is why
I'm holding the talk in English so you
all can understand me um I've uh started
a um free and open source project um
that does event aggregation last summer
um in a nutshell it basically is many
crawlers that go around and take all the
public events data put it into a central
datab base with an opan API and we have
many Publishers where you can get that
data back again um why do we do that U
mainly because it's really really
annoying to go to 100 different sources
to get to find out what is happening um
this is a problem that so many
communities have including our big
Community here if we want to know what
Tes what chaos events are happening this
year we have to go to many many many
different pages to find that out um and
that's one of the things we want to
solve um there's also the problem that
if you are a new organizer or if you're
a small organizer you kind of have to go
to the big um events.com
facebook.com uh meetup.com to publish
your event to have people find out that
you're doing something and with I think
that's really annoying as well and the
last but not least is accessibility is
really important both the data of events
but also the events itself can be
improved by adding accessibility
features here this is why one of the
things we do is we enrich the data that
we get so when we get uh event data from
locations that we know or from locations
where we can get accessibility data as
well we also add is this venue
wheelchair accessible and many many
other things um yeah um in in a nutshell
that's what we do um we don't want to be
the primary source for things so we want
um Publishers to have their own sources
that they control where they have their
events we want to just crawl things we
want to be always the second or third in
line whatever it's necessary um we're
currently very local for Austria um but
this might change soon hopefully uh we
have a project on GitHub it's under GPL
and we would love if somebody wants to
do this for the chaos Community or for
Germany or for something else um we also
have a self-organized session tomorrow
um you can find us at uh halfast 8 in
Hal you can also write us an email you
can find us on GitHub um and you can
talk to me anytime during the Congress
or after you can find me as Yoli pretty
much everywhere um we have quite a lot
of plans for the future we want to
connect multiple service together we
want to make more specialized Publishers
where for example for old people's homes
they get p PDFs of exactly the events
that are reachable on foot in their
region and stuff like that could be
semi-automated or very automated and
that would be awesome for for many
people that have needs for better
accessibility we want to do more generic
crawlers that can be easily configured
instead of just written specifically for
the sources better enrichment better
search and filtering so lots of big
plans if you're up to it please join our
self organization or come talk to me I'm
both in English and German of course um
thank you very
[Applause]
much thank
[Music]
you next up is a FR km six character
short
[Music]
codes hi I'm uh Benjamin from
Netherlands and on uh Friday the 15th
the Dutch uh broadcasting Foundation
better known as NOS got a tip about km
data League uh so km sends these text
messages if your flights get cancelled
delayed or uh yeah with some nice URL
with a Ultra short code so they can send
more than 300 chars uh uh two text
messages actually uh but the problem is
this link uh goes to a redirect page
that does not have any security question
uh asks like a last name or ZIP code or
email address and will just show you the
passenger
info uh in this case actually uh
somebody entered the wrong phone number
so it ended up at the wrong person uh so
it wasn't a used data leak but Yos from
the NOS question uh to me and another
security researcher like isn't this six
CH code to Dam
short well it turns out it was actually
case sensitive so if it's just Alpha
it's 20 * 6 uh 20 uh 6 * 2 to the power
of six which would make like 90 billion
combinations uh so let's for with some
random B scraping that this is not
feasible to scrape uh this will fire off
26 parallel uh curl commands and thanks
to the nice uh URL globing of G curl um
will just uh fire it
off well we got uh uh 94 uh not found
44s some mixed up uh uh letters and uh
after a while we got some for trees exis
denied and we already got like two
redirects to uh uh actual the back end
uh to to the to the pages uh this is
crazy right we just checked 100 codes it
already uh returns data actually of
course these are dummy uads because
these uads worked uh until still a few
days ago and I'm not sure if they're
fixed
everywhere uh so the Tom uh at the same
time the other security researcher finds
uh some other code in the way back URLs
which also worked uh and so we found out
it's alpha numeric so uh 20 26 * 2 + 10
to the^ 6 which would make like uh uh 56
billion
combinations um but since was at another
conference uh P I just changed scraping
to slow scraping so just uh only one
parallel job and add a
sleep uh and I waited a while uh removed
some uh some 404s of
it the problem was this uh slow scraping
was not blocked and uh we're getting a
consistent uh 1% uh hit on some random
chosen uh prefixes
so km is informed by the no and a few
hours later the noos network and I get
like a nice existing night of the
complete km and all the brand names uh
that are under
eomi so what was actually in it well uh
flight info ticket prices passenger Name
Records uh name phone number email
addresses and for international non-
shenen flights also passport info fisa
data uh we also see some buttons to
remove and update info we did not click
on these buttons
uh so uh we got a I got a 1% hit ratio
which would extrapolate to more than 500
million records uh the NOS did some
random small time uh scraping and they
got like
0.5% and km says well this is a very
hypothetical
calculation we don't want to comment
about the size of the leak and we take
our passenger privacy seriously and have
a very sophisticated security policy uh
bear to Bear nicely summarized it well
if you have a very Advanced security
policy apparently uh implies half perc
chance of success so on Monday it hit
the news it also h a teletext uh uh 40%
of it uh actually uh is only km uh 60%
is Air France lots of tlds involved on
these brand names uh we also found out
like the pnrs uh the passenger Name
Records are locked plain text to uh
Google analytics are 42
TXS um yeah and also they did some
redundancy shat two of the PNR and
street names et so uh yeah the moral of
the story always check these short codes
because hundreds of millions of people
got these short messages and nobody
checked to see if it was really
random
thank
[Music]
you next up is for lazy
designers the page layout L
class yeah hi I'm freedoman and I want
to give you a short introduction to the
page lout lat
class uh I love declarative programming
um for me the idea of telling your
computer what it should do and not how
it should do works really great so for
websites HTML itself it's declarative
and there are a lot of other fancy
declarative y script Frameworks to use I
also enjoy building apps with swift UI
and for text documents I ever since have
used markdown or latch or latch and um
when I wanted to create a a new photo
book I was thinking about how can I do
this also with a declarative approach
how can I create a graphic documents
declaratively documents with a page loud
and I didn't find any suitable solution
so I built the page layout later class
and unlocked declarative desktop
publishing so how does it work first you
set up your page with width and height
and margin Gutter and bleed and you can
add some uh layout guides like a grid
that's a green rectangle and the safe
Zone that's a the red
rectangle and then you just create a
page with a page command and insert some
text with a text
command but you have then the
possibility to um set some some explicit
placement of uh content using the place
command so you define the top left
coordinate of your frame and the bottom
right coordinate of your frame and
that's that so you can create
a yeah some layout in this case with two
columns uh you can use the breakable
option for your text and uh this way uh
create a two column text layout if you
want to have a more sophisticated layout
you can use the grid um the grid
consists of rows and cells so in this
case we have a grid of two rows and each
row contains two
cells um then you can add with relations
to to cells also you can add height
relations to rows and with an
exclamation mark you also can set a
relation relation between the width of a
cell and the height of a row so now uh
every cell has a fixed aspect
ratio you also can overwrite the
page dimensions for a page or for a
specific grid and then you can Place
some content um the content then is
automatically distributed across all the
cells of the
grid if you want to reuse a layout you
can build templates in this case you
just need to replace a page command with
new template command and and give it a
name and replace the content with
placeholders placeholders work
this will work or accept the same
arguments as the place command so you
can all so uh set the frame of a
placeholder explicit uh over across
multiple cells of the
grid you also can uh easily create
borders and shadows around your content
um Shadows are created with inkscape in
the background because latch does not
support gusan
blur um for bitmap graphics uh if you L
have a lot of bitmap Graphics in your
document the document can be quite large
quite quite fast uh multiple or several
gabt in size and with the optimize
command you can trigger image magic and
then the images are resized and and and
cropped and you also can set uh yeah
override the properties for the density
of your files and for jpeg compression
sharpening can be done and and you can
configure the D sample
threshold uh before printing can enable
the pre-light mode with a pre-flight
command and then you see on the top
right corner of each image uh the uh
density in pixels per
inch there are even more features so you
can easily create cover pages double
pages and before Pages or use vector
graphics utilizing tix library for
vector graphics um and I have some ideas
for future features like text and inner
shadows and and SVG filter integration
would be cool so you can adjust
brightness and and and saturation and so
masks border images are ideas and yeah
if you want to stay up to date you can
follow me on uh GitHub and masteron
thanks thank
[Applause]
you next up is smartphones Freedom
status in
2023
um are you there hello no all right um
we will continue with the next talk
which is code heat open source developer
contest and I will call this talk up
again after that so next up is code heat
open source developer
contest
there you
go and please adjust the microphones to
your I'm so charged thanks no
problem you can also put the yeah that's
we can move the elron yeah that's sorry
for the
trouble yeah so much
better
uh hello I'm onari from Indonesia uh I'm
I'm a with fasia here the fasia is a
community uh to promote free and open
source in Asia so we have this CIT uh
programs uh it's an annual programs that
for students can
join
and sorry
and why to join so for you guys that can
learn wants to learn on contribute to
free and open source project and also if
you want to refine your technical skill
and also connect to Asian Community
force and make friends around the world
and also there is a fun price if you
manage to get press to win for Summit to
Hanoi Vietnam
2024 so so how to practice uh
participates there you can go to cat.org
and there is eligible project that you
can choose first some oh sorry I did not
press
the I'm so
nervous you can see the slides on the
screen down there so okay yeah so you
don't have to turn around all the time
no problem so there is uh you can check
in our GitHub uh there is a few project
that you can contribute
and one of this is PS lab pocket science
lab if you're interested in Python
JavaScript open Hardware design and also
electronic second one that is open uler
which is if you interested in see
programming Linux distribution or
container fual machines and operating
system and you also can check it in our
GitHub and the next project that you can
try is if which is if you're interested
in Python
JavaScript back end front end and also
Android second is the light badges as
you can see I'm wearing one so if you're
interested in Android developments and
codl Hardware are also lights you can
check us in the hot tree with bunch of
budges there so you can find as uh in
Hal Tre uh later our code head
introductory at the ground floor hall
Tre for this assembly thank you very
much and I hope to see you at the
assembly
soorry thank
you all right um paging smartphones
Freedom status in 2023
again has not appeared we'll continue
with having a good time with python and
pocket science
[Music]
lab
[Music]
to come
again I think this is fine can you hear
me yeah it's great perfect okay so uh I
will be uh talking a little bit about
the one of the projects that tar talked
about the pocket science lab uh so uh to
begin with what is it the pocket science
lab is a um I would like to call it an
open Hardware platform or an science
platform
even uh it includes uh a number of um uh
sensors and instruments which you can
use during development of of other
projects
troubleshooting Science
Education disgu
limit uh so here are um a subset of the
instruments and sensors which the uh the
pocket science lab or Ps lab for short
uh supports and includes so if you have
have a an analog signal with a high
frequency analog signal from a device or
or you're troubleshooting a glitchy
glitchy connector the pocket science
tyab has a an oscilloscope for that if
you're looking at a um a less uh
fastly an analog signal which does not
change so so quickly multimeter uh you
got some some resistance or a
capacitance that you need to uh to
figure out how big it is also multimeter
for that uh if you have a digital signal
uh even if it's very high frequency up
to up to multiple
mehz uh for example if you're
troubleshooting a a Serial a Serial bus
or something like that the pocket
science T has a logic
analyzer if you need to to generate an
an analog signal yourself to Make Some
Noise with a speaker or activate some
kind of some kind of sensor with an
analog input the pocket science has a uh
uh an analog waveform generator or a
function
generator it also has a a square a
square function generator or a PW pwm
generator which you can use to actuate
Motors servos um pumps other kinds of uh
uh
devices uh it also has a programmable
power source with uh three voltage
outputs and one current output uh all of
which can be uh be programmed uh to
Output uh voltages and and currents to
uh to drive different sensors which you
which you can connect to the pocket
science lab and in in add to those those
instruments you can hook up other uh
other sensors such as accelerometer
barometer Compass Etc
um so here's a just a quick look uh at
two of the instruments the programmable
power source uh with the three voltage
uh uh outputs and the
oscilloscope and here's an example of
something uh you can do with it um a
robotic arm with with four servos all
being controlled by the pocket science
lab so the the pocket science lab uh is
fully open uh the whole stack including
the the hardware and all of the software
on top of it is open source uh so we
have uh multiple different uh uh pieces
of software on top of the hardware uh in
written in different languages so P
python is the main driver layer on PC uh
written in Python of course uh the
desktop app I see this it says here it's
written in PQ that's incorrect uh that's
outdated it's not written in JavaScript
um piece of Android written in Java
possibly moving to cotland and the
firmware itself is written in
C so uh lots of opportunities for uh
different types of of developers to work
in
it uh so the next version of the pocket
science lab which we are hard at work
developing uh has uh couple of new
features one of which is um it supports
Bluetooth and and Wi-Fi via an optional
um ESP uh module plugin and it also has
an SD card slot so using those two
features we can use the pocket science
lab uh in the next version that is as a
passive data collector for uh fieldwork
uh where you can either log the data to
the SD card or stream it over over over
the
network uh and the way that works is
normally the pocket the pocket science
lab uh is controlled by a host computer
over a serial
connection but if we uh do this in the
field there is no uh there's no host
computer so uh what do we replace it
with the way we we're doing it right now
is we are instead saving a sort of
program uh on the SD card uh which
contains the exact same bites as the
host computer would send to the pslab
and then the pslab just does exactly the
same thing as it would as it would do if
it received those those bites from the
the host
computer uh so the drawback of that
approach is that there's no brunching um
since it's a un it's there're no
conditionals you can't you can't uh act
on the data that you receive uh which is
unfortunate but that's that's the way it
is right now uh in the future we would
of course like to fix that um possibly
using allowing users to to write their
own firmware and Flash that to the to
the pocket science lab speaking of which
so the pocket science lab uses um pac2
24 microcontroller uh microchip provides
a proprietary tool for flashing firmware
with that we don't like proprietary
stuff so we wrote Our Own uh flashing
application MC boot flash if you're
using a pic microchip U architecture you
might want to check that out
so uh that's it please join us in uh in
our assembly if you're interested in
Pocket science lab thank you very much
thank
you so next try smartphones Freedom
status in 202 oh it's called Android
freedom in in
2024 actually but Dennis are you
around no um is somebody here who's on
the waiting list
what's your
number again
please oh Martin yeah yeah yeah I think
yeah all right I I have your talk here
so if Dennis doesn't show up we continue
with um um I make open source
software or I make open source without
programming sorry for the
surprise problem
but it's fine we're still uh well in
time surprise lightning talk so hello
yeah let's start hello I'm B blue I make
open source software without programming
uh mainly because my colleague say I
shouldn't do programming um so let me
introduce you I work for and against uh
the Dutch
government yes I I I'm even small more
yes I'm getting you can read my shirt
yes uh let's go to the Dutch government
it consists of a lot of different levels
they all fall under the Freedom of
Information acts and um since the Dutch
government click oh um they spend a [ __ ]
ton of money on software every year and
it um so they have budgets and there's
reality afterwards as you can see
reality doesn't meet the budget um it's
a really lot of software it comes mainly
because of new is always better um a lot
of organizations have specific needs and
a not invented heal syndrome and every
new project is way cooler than the old
one because they do it always better so
let's dig in um there's a Freedom of
Information Act in the Netherlands as in
lot of European countries um all
documents from the government should be
public everybody can request them you
shouldn't be a citizen there are no
really rules about it uh they should
give it within 4 weeks to you and um yes
so since you can print source code it's
a document what my cheery so let's try
it so I sent a very nice Freedom of
Information request in Dutch and said I
want the app I want the backend I want
the cryptog graphics I want everything
cicd um and because this ministry also
makes the Freedom of Information
policies uh it's the right place to try
um it worked um that came a lot of
questions in a very nice lunch meeting
with them um do we have the source codes
no they didn't they're supplier heads do
we legally own the source code and that
answer was yes that was the important
one um they assessed that the
application which is on most of Dutch
citizens mobile phone uh was very risky
to be open sourced it's samarin and you
can decompile it from net to readable
code uh in C it's very easy um and the
back end should be fine that question
was also no that's more difficult but it
worked they open sourced the the apps uh
the back ends will come it will take
some more time we're now busy one and a
half year um but the deadline is now I
think the 29th of February or 1st of
April some nice date um so the app got
open source people found problems so
this is debugging code this is the
bigger problem they found
congratulations to the internet um the
next steps I went to the text Authority
and asked for 40y old uh code it's now
somewhat older because I'm also older
it's made in cool genen it's a Cobalt
generator um they denied it being uh a
risk for the security and the financial
situation of the Dutch state which is a
okay I pay taxes how does this work um
so um then the question is is there any
profit in it yes they sent letters to
inform the Dutch Parliament that they
open sourced code based on the Freedom
of Information request um so that's what
I'm going to use at more organizations
in the Netherlands and already did um
any questions afterwards just find me
somewhere I'm wearing a big yellow
hoodie thank you thank
[Applause]
you so before we start with the um with
the German part of the session I would
say um there's one final call for
Android security in 2024
Dennis no reaction so then we uh take a
talk from the waiting list if you would
if you like so you can just go ahead and
uh get up on stage it was honey I
Federated the search engine right okay I
have the right one that would have been
awkward hello uh I'm Martin and this is
very quick set of slides that I threw
together because of something a
conversation that I had with a couple of
people over the last couple of days um
and it's really all about how the web
has become very difficult to search so
it's it's super hard now to find
anything you go on a search engine
they're full of ads they're full of
self-dealing so it's promotion for the
search engine operators products and
services they're full of SEO spam and of
course now they're also full of garbage
hallucinations generated by large
language models so we go to search do we
find what we're looking
for maybe not if we're lucky we do I'm
going to say here I I think this problem
is just getting worse this is just the
beginning now that so many people are
there saying okay what can I do with an
llm what can I get this to generate for
me and you'll see uh agencies
advertising their services to generate
huge numbers of web pages for you with
LL
oh and hey some of the ads are actually
Mal advertisements which deliver malware
and compromise your machine so if you're
unlucky enough to click on it then you
might end up with more than you bargain
for um so what could we do about this
and back in the day before Google
actually before alter Vista before
lyos uh there are a lot of people trying
to figure out how we connect little
independent islands of content of
information together and I talked about
a few of them on this slide here I'm not
going to talk about them in detail
because I'll run out of time but there's
one that I think is particularly
interesting which is called Harvest
which is a a Federated distributed
approach to searching and finding stuff
uh okay the net was a bit smaller back
in the 1990s we uh we' grown a bit since
then
um what could we do with what we know
now and particularly the information and
the tools that we have now and I'm going
to suggest that things like RSS things
like XML sitemap feeds these are really
useful for building a little personal a
customized search but we also have meta
search engines like search NG if
anyone's played with that that sits in
front of regular search engines and kind
of trust worthy sites places like and
I'm going to say it here Wikipedia I
think a lot of bad press for Wikipedia
in the media but this is a really
trustworthy site because of all of the
editorial process so what can we do can
we kind of kind of stick all these bits
together somehow um this diagram is
probably too small for you to read but
the the boxes in blue are uh search NG
and some modules and it has dozens and
dozens of modules for talking to uh
search engines that you know and love
but also to kind of authoritative
sources like cross ref for scientific
research papers um and the boxes in a
kind of yellowy orange those are the
bits that kind of need to figure out
what if you could plug some personalized
search into this what if we could use
things like RSS from fediverse updates
but without compromising people's
privacy and who they want to share that
information with uh so that's me I just
started thinking about this but now I've
put it in your heads so I'm really
interested in what you think about it uh
you've got my details up there or come
and find me I'd love to talk to you
about this uh thanks very much thank
you then next up is Holy
mut
are you
here all right we'll continue with the
next talk
um yeah we are going to get used to
[Music]
this yeah um
hello
is
Management Open SCE open data open
science community and culture change
in
[Music]
accessible
[Music]
interoperable
[Music]
in
bir for business and ecological and
related data my liing acronym is
punch
common infrastructure
training and education ethical legal and
social
aspects aspect industry
engagement
science Communication
Center
for thank you thank
[Music]
[Applause]
you so holy
[Applause]
is we
video okay good yeah
mer
hi uh thanks for letting me speak here
with my broken bad German
English um I'm sent from the artist
Collective
141 uh which is called kk1
141 and actually
we have here the this is the Church of
M
because we love
mud mud often is like people say mud oh
it's dirty
like you know here this is real uh M
from near lerat where I live now like 7
kilm away from lerat M and maybe you all
know the guy M Munch M
Wizard and um what what our project
is um we want to build a
memorial for mud wizard like you know
everybody knows mud wizard from these
YouTube platforms and uh the guy uh
called Martin leure
in former time yeah she knows in the
front row I know her too uh she knows
the story like I was um candidate for
German bundist tar in
2017 and I shaved myself then these days
and actually uh there was a journalist
who didn't like my election campaign
posters because I made
penises I was making very big penises
from like TI dough cookie for yeah from
dough and baking them and uh installing
them into my uh election campaign
posters in Berlin uh PR laberg and Panko
and so on and Martin Leen really was
pissed about it and he said hey what a
pervert our kids going to like uh we
have to do something about this pervert
uh that's the story with Martin Leen but
Martin Leen uh luckily was also there
when uh lerat was
evicted and there was a big big
demonstration with 35,000 people against
around 10,000 policemen and yeah and
madmonk did it he brought like
protesters and demonstr and the police
together closer together
like and yeah look at him
like oh yeah here you can see here mud
Monon yeah actually it's just for ill
illustration purpose some YouTube video
I like speed it up like three times
faster or something and actually if you
if the 5 minutes are over then you can
you can watch this talk like 10 times
and read the whole [ __ ] that standing up
there because it's a serious thing it's
it's not only a fun project it's an art
project and we want to build a statue of
M Munch yeah of this guy and also the
police guy in uh one to one like massab
I to Ein in German like the same size as
he was shall be a statue of
madmonk uh like yeah hitting I I I will
try to simulate with
him
like yeah
this so so actually it's all about it
about this scene like and you read what
is standing there and I shut up and uh
yeah we would be really really thankful
if you support us at the moment we know
everything how to do it and the only
thing is like missing money or
industrial help like if somebody has a
big 3D gluing facility please contact us
that would be really great or like uh we
do it with German portal Fraser at the
moment but yeah um now you know now you
know what it's all about and here read
this thank you thank you thanks thanks a
lot thanks a lot for having me thank
you careful there's the state yeah great
all
right
okay then next up is hakm Castle
hwk hwk hwk hwk that's something between
a and o I can't
pronounce a
[Music]
hawk uh please one of you should stand
in front of the
microphone because they don't have that
much of range you can see the slides
down there turn to the
right
okay right okay hi we are some of the
live forms behind hecma Castle so uh and
we invite you to hack a castle with us
this one so you might have heard that in
Austria we have a lot of nice castles
but this one already comes with a lot of
hacker infrastructure so we have patch
panels in all rooms we have a nice
camping Meadow we have um fiber internet
we have DM mix lights and we have
workshop and seminar rooms and we are
allowed to use all of this so let's make
use of
it yeah also we have uh soundproof party
towers and there will be
junk and uh basically it's going to be a
hacker event we want to make a hacker
event in a castle it's not just a camp
we have sleep rooms uh but it's also a
camping area
and it's going to be bar cam style talks
and hopefully you guys having a good
time we're going we're planning on
selling about 45 450
tickets and uh for maximum Comfort there
are even some hotel rooms maybe for up
to 50 people and if you don't want to
sleep outside there will be sleeping
dormitories and if you want to come with
your can temp you can because there is a
camping Meadow between the apple trees
but you will have to take care of the
apple trees of course it's it's a
vitamin alert yeah so they're
tasty so
yeah so that sounds like an awesome
event now you might ask yourself when is
this happening it's happening next year
for a just a reminder it's
2024 um in the last week of August from
uh buildup is um um August 28th and tear
down is September
1st where is it happening as you
probably guessed it's in Austria
specifically in lower Austria utlak so
it's not that far far away from Germany
don't worry be campy specifically it's
uh in between lint and Vienna uh in
utlak and it's easily available by car
or train and we are all organizing a
shuttle
bus so the only thing that's missing is
you and we invite you to our event hecas
Castle uh on our website we also have a
link to our masteron account and to our
we uh not to our website to our Matrix
room so please come and have fun with
us thank
you
and please get in touch outside of the
hall with
us all right thanks then next up is
digital I'm sorry for the mixup with the
German and English talks um sometimes
the speakers changed it last minute
sometimes I just don't get
it yeah it it was an Austrian talk
anyway okay so and our German is not the
yellow from the
egg hello yeah um it's a German talk
so Soul watch it
monitoring on
yeah
[Music]
workshops
work um yeah
e
[Music]
[Applause]
good yeah slide
yeah Pro of
belief of
work bootstrapping would
t-sh
good
[Applause]
feel thank
you hi
open
that
for
focus of open
data
for
a um
for
than
[Applause]
apparently I have some open slides
there I don't so back to the file
manager and the last few
talks um where do we have
it analog pixel print
Workshop
hi my name is alen and I will talk about
pixel printing with Lego after this talk
you have the Cs the real fun you have
the opportunity to try out the process
um first we will
stick um off a
motif then we will color the
stones cleaning the
surroundings add a second
color
place the printing
material place the printing
felt and pull the printing roller over
it then we have the print
result in addition to figures and
Abstract motives is text is also
possible have here we have here an
example um more
examples more examples um like Christmas
trees are from my last
workshops and this cat
also um there location is in um Hall one
in the for
you I've prepared a sketch um sheet for
the
workshop and you can download it from
the
O um I
show my model is the HZ noodle is um no
my model for the holds noodle is the
provisional press from the
states instead of a plastic printing
roller I used a rolling uh pin called in
German noodle
HS the German printing height was very
important to me in the design this means
you can use old cliches wooden and Lead
type the construction plans and data
will be published at Holz noodle
de
I would like to introduce uh another
model of a um open source press the open
source Pro the Open Press project it's a
3D printed
press in this
format
and small8 time 8 Pin boards from Lego
uh that fit into it
you can access the printing data and uh
on S sing verse singing
was last but not least a book tip Roy
and Martin have experimented a lot of
with Lego letter press and achieved very
nice
results
thank you for your
time thank
you all right we still have almost
quarter of an hour left and only one
talk is anybody here from the waiting
list NOP here there there who come up
who are
you we still have some
time
um yeah I I no I have to access the the
talk system and download your slide
because I didn't prepare for
this we see um now can you please tell
me the name of the talk
[Music]
again ah lspedia yeah yeah yeah right
right right um all right I'll just
quickly download
this we used to have a Jeopardy Melody
for this in the meantime a big sorry
from us uh to the translation Angels
you're doing a marvelous work out there
and we make make just currently making
life a bit difficult for you so a bit
sorry about this but please give a big
round of applause to all those people in
the back who support this translation
what so on thank you very
[Music]
much all right I got
it go ahead okay hi I'm tomato I am a 3D
artist and I lived in litat for two and
a half years and um yeah I made 3D scans
of the village uh over this time and I'm
planning to build a tool where you can
browse and explore lerat in 3D and over
time and I'm not so good in presentation
so I just brought a video that we can
watch together so film up oh that's
right I also have to download a
video sorry yeah no problem I mean
that's um that's what I forgot
um I hope I downloaded it
somewhere otherwise I have to check my
email live on stage yeah there's a
YouTube link also if this is is is the
YouTube link in the description of the
talk somewhere um ah yeah yeah I think I
have it yeah here it is here it is um
let's
see I'm not good with computers stop
time phone minutes me too you're just
improvising um So the lucky Cloud page
says requested page could not be found
but I'll take the YouTube video
instead
okay
and just have to switch the tab over to
the other
side all right here we
go Al I have sound if it's possible oh I
don't know if we have sound okay then
it's so
fine not not instantly no sorry but
maybe you can say something too
uh it's playing music right now
okay I know some Thunder
[Laughter]
is I have a loose cable here maybe some
click
sounds now the music
starts ah perfect
timing
[Music]
e
[Laughter]
[Music]
okay thank you if you want to join the
project um there's the skills needed
like programming and stuff you can find
my contact information up there thanks
thank
[Applause]
you all right then
we still have somebody from the waiting
list because we still have
time no all right then we'll have our
last talk for today that's going to
be
[Music]
um
yeah we s here
in
[Music]
here um is
um
for blackbox
[Music]
the
yeah
for
[Applause]
[Music]
than all right so that concludes today's
lightning talk sessions thank you all
for being here
and thanks to all the speakers who uh
delivered their talk today great work
thank you all have a nice
[Music]
Conquest