Antonín Král (bobek) @bobek@bobek.cz

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

FYI @michalillich
---
RT @ASlavitt
BREAKING: Great news.

SalivaDirect received approval this morning from the @US_FDA.

This could be one the first major game changers in fighting the pandemic. Rarely am I this enthusiastic. Here’s why.

Follow if interested.
https://twitter.com/ASlavitt/status/1294654256763609090

Nemáte někdo nějaké volné elektrony? Nám došly.

https://github.com/cpetrich/counterfeit_DS18B20

FYI @joysfera

Nice writeup about getting #tensorflow Lite on #esp32

https://towardsdatascience.com/tensorflow-meet-the-esp32-3ac36d7f32c7

One day build -- #modbus #rs485 scanner using #esp32 and sending data over bluetooth serial to mobile phone.

Very nice writeup from @kinvolkio@twitter.com about use of #ebpf compiler collection (#bcc) to troubleshoot low-level performance issue (this time incorrect handling of network mask in #k8s).

https://kinvolk.io/blog/2020/04/inside-kinvolk-labs-investigating-kubernetes-performance-issues-with-bpf/

Today's #dumpsterfind DC2DC converters - 12V/18A and 5V/30A. Now it's time for 48V solar installation ;)

https://room.eu.com/news/nasa-funds-vast-radio-telescope-concept-on-far-side-of-the-moon

https://techcrunch.com/2020/04/18/to-avoid-hostile-takeovers-amid-covid-19-india-mandates-approvals-on-chinese-investments/

FYI @michalillich@twitter.com

Došly papírové krabičky, tak doufám, že příjemce ocení improvizaci.

I ran out of the paper shipping boxes. Hope that the receivers are going to appreciate the improvised ones.

Brněnská hvězdárna připravila moc pěkný web vysvětlující proč dává smysl zachovat CET a ne letní čas (CEST).

https://www.stredoevropskycas.cz/

#cet #cest #timezone

Moc pěkné udělaná vizualizace https://aatishb.com/covidtrends/?country=Canada&country=China&country=Czechia&country=Poland&country=Singapore&country=Slovakia&country=South+Korea&country=US

Popis viz třeba https://youtu.be/54XLXg4fYsc

FYI @michalillich@twitter.com

Moc pekny clanek o modelovani sireni epidemii na Aldebaranu -- https://www.aldebaran.cz/bulletin/2020_12_kor.php