Antonín Král (bobek) @bobek@bobek.cz

Printing double Klain bottle with a vintage (1987) plotterXY3141 via DIY interface for #RPi 0 (under the brown PCB). Plotter, originally connected to #ZXSpectrum is now connected to home WiFi. Dah, even the @eevblog DMM next to it has more processing power :) #plottertwitter

Wow @brave Version 1.19.77 Chromium: 87.0.4280.101 (Official Build) beta (64-bit) will happily connect to https://pinning-test.badssl.com/ while firefox and chrome correctly handle #HSTS preload and prevent connection.

:facepalm: the computer is 15y younger than the plotter, obviously ;)

Finally got time to fix Czechoslovakian 1980s desktop plotter XY4131 from Laboratorni Pristroje Praha. It moves! Currently powered by about 15y older PC with LPT. Will probably rewire with #raspberrypi to make it wireless.

#plottertwitter

Nicely written intro into writing #Kubernetes operators in #Golang

https://fedepaol.github.io/blog/2020/12/07/writing-a-kubernetes-controller-part-1/

Very nicely written article on how homomorphic encryption works -- https://bit-ml.github.io/blog/post/homomorphic-encryption-toy-implementation-in-python/

#encryption #fhe #homomorphic

FYI @michalillich @vpecinka some fresh independent performance data about @MayaData MayaStor #nvme
---
RT @epowell101
Thank you @Chris_Mellor for pulling together info about @MayaData performance from @JakubPav @Volterra_ & thank you for the help Intel (@chrisjtobias & team). Ease of use of open-source Container Attached Storage plus performance. i.e. -> have 🎂, eat 🎂https://blocksandfiles.com/2020/11/30/portworx-and-mayastor-container…
https://twitter.com/epowell101/status/1333916151877750784

Tenhle deploy se úplně nepovedl ;) @rohlikcz

I had this idea, that I will make COUPLE bridge pillars for their wooden railroad as a Christmas present. I guess I went a bit overboard....

#brio #Christmas2020 #Christmasgifts

Converting SMD module to THT (like a proper through hole...). Also catered for the needed power rating in the process. :)

Distancni vyuka v praxi, aneb kdyz si ucitel nosi praci domu :)

#homeschooling #distancelearning

Curvature of this battery pack looks a bit suspicious .... 😀

Nice one, was not aware of CREATE STATISTIC in @PostgreSQL @planetpostgres #PostgreSQL

https://build.affinity.co/how-we-used-postgres-extended-statistics-to-achieve-a-3000x-speedup-ea93d3dcdc61

Couple people asked for links to soldering kits which I've build with kids:
https://s.click.aliexpress.com/e/_d6bCJMX
https://s.click.aliexpress.com/e/_dUjB5xd
https://s.click.aliexpress.com/e/_dWKcExD
https://s.click.aliexpress.com/e/_dYmx5xH
https://s.click.aliexpress.com/e/_dYTbxn5
https://s.click.aliexpress.com/e/_dVCdMgj
https://s.click.aliexpress.com/e/_d7eiQGL
https://s.click.aliexpress.com/e/_dTnKWo3

#kids #DIY

Wharton inspired Mini Clocks by SDG Electronics arrived in the mail from @JLCPCB. I just love esthetics of these clock. Just soldered ESP32 and off we go. I had to tweak the sw a bit, you can find it at https://github.com/bobek/sdg_wharton_miniclock

Tak to vypada, ze implementace GAEN uplne nezvladaji timing zmeny BDADD vs RPI a leakuje mapovani stare BDADD nad nove RPI. https://lasec.epfl.ch/people/vaudenay/swisscovid.html (dole, Little Thumb attack). Mno kdyby to bylo OSS, tak by si toho treba nekdo vsim driv. FYI @michalillich @PetrSimecek

Skvele udelane video o tom, jak funguji (technicky/bilogicky/chemicky) testy #COVID19 -- PCR vs LAMP. Automatizace testovani. https://www.youtube.com/watch?v=s_usIkrVQwE
FYI @michalillich

Oho, #golang is thinking about switching to register-based method calling. https://github.com/golang/go/issues/40724

Which is cool, I've spend non trivial time with #eBPF over the weekend to decode parameters on method calls. Fortunately there is great https://github.com/iovisor/bcc/pull/1719