Kamil Banach
@banach.net.pl
Software Engineer, Speaker, Builder, Oracle ACE
🚀 Building https://signaturky.com - blazingly fast domain signature management tool
🌐 Blogging at https://banach.net.pl
🚀 Building https://signaturky.com - blazingly fast domain signature management tool
🌐 Blogging at https://banach.net.pl
Reposted by Kamil Banach
A very nice feature of @jooq.org - implicit joins!
No need to explicitly join child tables to retrieve parent's columns. SQL that feels like ORM :)
No need to explicitly join child tables to retrieve parent's columns. SQL that feels like ORM :)
January 30, 2026 at 7:17 PM
A very nice feature of @jooq.org - implicit joins!
No need to explicitly join child tables to retrieve parent's columns. SQL that feels like ORM :)
No need to explicitly join child tables to retrieve parent's columns. SQL that feels like ORM :)
Today I found out that #Firefox has a feature called 'containers' that allow to separate different accounts in single profile. Nice! 😎
Docs:
Docs:
How to use Firefox containers | Firefox Help
This article explains how to use Firefox containers with the Multi-Account Containers extension, to organize your online activities.
support.mozilla.org
January 28, 2026 at 8:26 AM
Today I found out that #Firefox has a feature called 'containers' that allow to separate different accounts in single profile. Nice! 😎
Docs:
Docs:
And here we are - Tuesday, the last day of jChampions Conf!
Just like the previous days, we've got 7 sessions today and again (coincidence? I think not!) these three look the most interesting to me 👇🧵
Just like the previous days, we've got 7 sessions today and again (coincidence? I think not!) these three look the most interesting to me 👇🧵
www.youtube.com
January 27, 2026 at 10:45 AM
And here we are - Tuesday, the last day of jChampions Conf!
Just like the previous days, we've got 7 sessions today and again (coincidence? I think not!) these three look the most interesting to me 👇🧵
Just like the previous days, we've got 7 sessions today and again (coincidence? I think not!) these three look the most interesting to me 👇🧵
Reposted by Kamil Banach
On Apple M3, a Linux KDE plasma desktop under Fedora Asahi Remix is now WORKING! Super excited to share this update and happy to answer any questions! Co-credits to noopwafel and Shiz. :)
January 26, 2026 at 11:26 AM
On Apple M3, a Linux KDE plasma desktop under Fedora Asahi Remix is now WORKING! Super excited to share this update and happy to answer any questions! Co-credits to noopwafel and Shiz. :)
Day 3 of jChampions Conf is on! 🚀
Agenda is packed again, but these 3 talks caught my eye 👇🧵
Agenda is packed again, but these 3 talks caught my eye 👇🧵
January 26, 2026 at 10:45 AM
Day 3 of jChampions Conf is on! 🚀
Agenda is packed again, but these 3 talks caught my eye 👇🧵
Agenda is packed again, but these 3 talks caught my eye 👇🧵
Time for day 2 of jChampions Conf! 🚀
Just like yesterday (and like previous years) the agenda is stacked with interesting talks. For me, these three caught my eye 👇🧵
Just like yesterday (and like previous years) the agenda is stacked with interesting talks. For me, these three caught my eye 👇🧵
January 23, 2026 at 10:45 AM
Time for day 2 of jChampions Conf! 🚀
Just like yesterday (and like previous years) the agenda is stacked with interesting talks. For me, these three caught my eye 👇🧵
Just like yesterday (and like previous years) the agenda is stacked with interesting talks. For me, these three caught my eye 👇🧵
Did you know the jChampions Conference ( jchampionsconf.com ) starts today?
Now you do - and the first session begins in under 4 hours! 😄
Today's agenda is packed with great stuff, but these three sessions caught my eye 🧵 👇
Now you do - and the first session begins in under 4 hours! 😄
Today's agenda is packed with great stuff, but these three sessions caught my eye 🧵 👇
JChampions Conference
Conference organized by Java Champions and featuring Java Champions in the presentations.
jchampionsconf.com
January 22, 2026 at 9:59 AM
Did you know the jChampions Conference ( jchampionsconf.com ) starts today?
Now you do - and the first session begins in under 4 hours! 😄
Today's agenda is packed with great stuff, but these three sessions caught my eye 🧵 👇
Now you do - and the first session begins in under 4 hours! 😄
Today's agenda is packed with great stuff, but these three sessions caught my eye 🧵 👇
A very nice course (and free!) that's happening right now - 3 out of 9 lessons are already available on YouTube. It’s all about "what they didn't teach you during your studies" - Git, terminal basics, debugging, and more.
Worth checking out 😃
missing.csail.mit.edu
Worth checking out 😃
missing.csail.mit.edu
The Missing Semester of Your CS Education
Master powerful tools that will make you a more productive computer scientist and programmer.
missing.csail.mit.edu
January 20, 2026 at 8:43 AM
A very nice course (and free!) that's happening right now - 3 out of 9 lessons are already available on YouTube. It’s all about "what they didn't teach you during your studies" - Git, terminal basics, debugging, and more.
Worth checking out 😃
missing.csail.mit.edu
Worth checking out 😃
missing.csail.mit.edu
D'oh, system update on Pixel devices is one of a kind.
Initially, it displays a message saying "up to date, last checked at 4:06." However, upon pressing "check for update," it suddenly "discovers" a new update and begins downloading it.
Why?! 🙁
Initially, it displays a message saying "up to date, last checked at 4:06." However, upon pressing "check for update," it suddenly "discovers" a new update and begins downloading it.
Why?! 🙁
January 16, 2026 at 10:11 AM
D'oh, system update on Pixel devices is one of a kind.
Initially, it displays a message saying "up to date, last checked at 4:06." However, upon pressing "check for update," it suddenly "discovers" a new update and begins downloading it.
Why?! 🙁
Initially, it displays a message saying "up to date, last checked at 4:06." However, upon pressing "check for update," it suddenly "discovers" a new update and begins downloading it.
Why?! 🙁
toolbx - containertoolbx.org - is quite impressive. 🚀
I just migrated plain npx something into running command from a container - to separate it (a bit... 😉) from my OS.
I just migrated plain npx something into running command from a container - to separate it (a bit... 😉) from my OS.
toolbx
Tool for interactive command line environments on Linux
containertoolbx.org
January 13, 2026 at 8:49 PM
toolbx - containertoolbx.org - is quite impressive. 🚀
I just migrated plain npx something into running command from a container - to separate it (a bit... 😉) from my OS.
I just migrated plain npx something into running command from a container - to separate it (a bit... 😉) from my OS.
January 6, 2026 at 8:38 PM
Reposted by Kamil Banach
Guys, we did it. We invented the Commodore 64
Also neat at CES: HP’s battery-powered PC built into a keyboard. Sort of a screenless laptop.
January 6, 2026 at 6:06 PM
Guys, we did it. We invented the Commodore 64
Oh, not sure why it ends in the replies. But here we go, with link www.youtube.com/watch?v=KysFzAMfLnc&pp=0gcJCTwKAYcqIYzv 😀
January 6, 2026 at 2:47 PM
Oh, not sure why it ends in the replies. But here we go, with link www.youtube.com/watch?v=KysFzAMfLnc&pp=0gcJCTwKAYcqIYzv 😀
A nice post about icons on Mac OS Tahoe (from Nikita Prokopov aka tonsky) - why they're somewhat difficult to understand 👇
https://tonsky.me/blog/tahoe-icons
https://tonsky.me/blog/tahoe-icons
January 6, 2026 at 2:40 PM
A nice post about icons on Mac OS Tahoe (from Nikita Prokopov aka tonsky) - why they're somewhat difficult to understand 👇
https://tonsky.me/blog/tahoe-icons
https://tonsky.me/blog/tahoe-icons
I have just subscribed, that means I paid for the yearly usage, to SourceHut (sourcehut.org)! 🚀
January 5, 2026 at 8:58 PM
I have just subscribed, that means I paid for the yearly usage, to SourceHut (sourcehut.org)! 🚀
Oh, I just found out that I can replace ngrok with Cloudflare Tunnel 😍
I can use custom domain, with same feature set , or least same for me as I need only plain basic HTTP(S).
Single command to run.
Stay tuned for instruction (as a blogpost!) 😄
I can use custom domain, with same feature set , or least same for me as I need only plain basic HTTP(S).
Single command to run.
Stay tuned for instruction (as a blogpost!) 😄
January 5, 2026 at 6:52 PM
Oh, I just found out that I can replace ngrok with Cloudflare Tunnel 😍
I can use custom domain, with same feature set , or least same for me as I need only plain basic HTTP(S).
Single command to run.
Stay tuned for instruction (as a blogpost!) 😄
I can use custom domain, with same feature set , or least same for me as I need only plain basic HTTP(S).
Single command to run.
Stay tuned for instruction (as a blogpost!) 😄
When installing the new operating system, I forgot to export my GPG keys. Fortunately, I found a way to read them directly from the backup.
I wrote a post outlining steps (mostly for future me) 👇
https://banach.net.pl/posts/2026/export-and-import-secret-gpg-keys-from-backup
I wrote a post outlining steps (mostly for future me) 👇
https://banach.net.pl/posts/2026/export-and-import-secret-gpg-keys-from-backup
January 5, 2026 at 2:12 PM
When installing the new operating system, I forgot to export my GPG keys. Fortunately, I found a way to read them directly from the backup.
I wrote a post outlining steps (mostly for future me) 👇
https://banach.net.pl/posts/2026/export-and-import-secret-gpg-keys-from-backup
I wrote a post outlining steps (mostly for future me) 👇
https://banach.net.pl/posts/2026/export-and-import-secret-gpg-keys-from-backup
I published two posts on my blog this week - it is second and third post this year. This means I've already tripled my output compared to all of 2024! 😂
December 31, 2025 at 12:13 PM
I published two posts on my blog this week - it is second and third post this year. This means I've already tripled my output compared to all of 2024! 😂
I spent a while improving the OG images for posts on my blog - the results is below - after on top, before on bottom. 🎉
December 29, 2025 at 8:09 PM
I spent a while improving the OG images for posts on my blog - the results is below - after on top, before on bottom. 🎉
Did I wrote - more post about Fedora? Here it is!
Not directly about Fedora, but about SSH, Git and Intellij. And mysterious passphrase popup. 👇
banach.net.pl/posts/2025/a...
Not directly about Fedora, but about SSH, Git and Intellij. And mysterious passphrase popup. 👇
banach.net.pl/posts/2025/a...
Adding SSH keys on autostart in KDE (for IntelliJ)
Resolving issue with the IntelliJ popup to enter SSH key passphrase - with the, probably, simplest way ever, which is… add all keys after the login!
banach.net.pl
December 29, 2025 at 12:10 PM
Did I wrote - more post about Fedora? Here it is!
Not directly about Fedora, but about SSH, Git and Intellij. And mysterious passphrase popup. 👇
banach.net.pl/posts/2025/a...
Not directly about Fedora, but about SSH, Git and Intellij. And mysterious passphrase popup. 👇
banach.net.pl/posts/2025/a...
Welp, my wifi worked pretty slow (like 3-4 times slower than expected!) and I was not sure why.
Turns out that I installed opensnitch in version 1.6.5 instead of 1.8.0 - how? I do not know - which caused issues. 🤦
After update everything works as expected. 🎉
Turns out that I installed opensnitch in version 1.6.5 instead of 1.8.0 - how? I do not know - which caused issues. 🤦
After update everything works as expected. 🎉
December 27, 2025 at 7:42 PM
Welp, my wifi worked pretty slow (like 3-4 times slower than expected!) and I was not sure why.
Turns out that I installed opensnitch in version 1.6.5 instead of 1.8.0 - how? I do not know - which caused issues. 🤦
After update everything works as expected. 🎉
Turns out that I installed opensnitch in version 1.6.5 instead of 1.8.0 - how? I do not know - which caused issues. 🤦
After update everything works as expected. 🎉
Well, looks like I migrated from Manjaro to Fedora. And I like it!
Fedora (with KDE) seems like the most polished distro I've ever worked on.
Fedora (with KDE) seems like the most polished distro I've ever worked on.
December 27, 2025 at 2:47 PM
Well, looks like I migrated from Manjaro to Fedora. And I like it!
Fedora (with KDE) seems like the most polished distro I've ever worked on.
Fedora (with KDE) seems like the most polished distro I've ever worked on.
I've just upgraded (on production) PostgreSQL from 12 to 14 - without any issues. Only thing I needed to tweak was ports and pg_hba.conf. 👍
December 21, 2025 at 8:26 PM
I've just upgraded (on production) PostgreSQL from 12 to 14 - without any issues. Only thing I needed to tweak was ports and pg_hba.conf. 👍
Serdecznie zapraszam na #YavaConf w tym tygodniu - będę miał okazje opowiedzieć trochę o Javie zarówno na żywo (w piątek o 17:25, sala 3), jak i w wersji VoD.
December 2, 2025 at 7:28 PM
Serdecznie zapraszam na #YavaConf w tym tygodniu - będę miał okazje opowiedzieć trochę o Javie zarówno na żywo (w piątek o 17:25, sala 3), jak i w wersji VoD.