stfn :raspberrypi: :python:

Python dev / DevOps wannabe / Homelabber / self-host everything / Astrophotography / Gardening / Permaculture / BOINC / Degrowth / Fan of Late Night Linux Family podcasts

My Blog: https://stfn.pl/
My Astrobin IOTD bot: https://fedi.stfn.pl/@astrobin_iotd
My Polish Energy Production bot (in Polish): https://pol.social/@energetykapolska
My Codeberg: https://codeberg.org/stfn

Public Key

npub154d8zvy7vv9gfsj05ntkfzp2xyfjsz2arunyqed7ejgq5a2vpn8qmrgctc

NIP-05 Address

[email protected]

Profile Code

nprofile1qqs22kn3xz0xxz5ycf86f4my3q4rzyegp9w37fjqvklveyq2w4xqensprpmhxue69uhhyetvv9ujumt0d4hhxarj9ecxjmntamsyk4

Publishing to

relay.momostr.pink

Author Public Key

npub154d8zvy7vv9gfsj05ntkfzp2xyfjsz2arunyqed7ejgq5a2vpn8qmrgctc

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Last Notes

2025-04-26 11:37:46 GMT

New blog post!
Continuing on the topic of Nextcloud, this time I talk about generating TLS certificates with the use of Tailscale. This allows me to have a proper HTTPS connection when accessing Nextcloud with Tailscale. No more browsers complaining that the connection is insecure. And this mechanism can be used to secure any local services reachable over VPN!
https://stfn.pl/blog/68-tailscale-tls-with-nextcloud/
#Nextcloud #tailscale #SelfHosting #blog #Linux

2025-04-18 07:58:27 GMT

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Five years working professionally as a Python developer and that language still surprises me in the most basic things

2025-04-18 07:57:53 GMT

OK, that surprised me, I did not expect that outcome. I assumed all() for an empty list would return False? And it explains why my code was not doing what I wanted xD
#python
https://cdn.fosstodon.org/media_attachments/files/114/357/892/724/081/338/original/bfef3831a3995cdb.png

2025-04-09 06:32:01 GMT

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I'm still looking for a plane sharing coop :)

2025-04-09 04:30:50 GMT

Today for the first time in many months, I will be taking a plane.
AMA me anything!

2025-04-05 19:07:56 GMT

Oh Em Gee, this banger (hehe, banger) is sixteen years old :O
https://www.youtube.com/watch?v=qqXi8WmQ_WM

2025-03-27 19:52:26 GMT

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I see, that is something I have absolutely no experience of :)

2025-03-27 19:28:55 GMT

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Fishron was one of those bosses that felt unbeatable at the beginning

2025-03-27 17:15:50 GMT

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Finally killed the Empress of Light. The only bosses left are the Moon Lord and the winter/Halloween events ones

2025-03-24 19:01:04 GMT

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BTW, Steam says I have 600 hours in the game, I made tons of builds over the years, and I still did not kill the Moon Lord 😅

2025-03-24 18:56:31 GMT

When playing Terraria, for each boss I have the same stages
- it's impossible to beat
- OK, I can beat it with difficulty
- *farming it*
- killing it with a few hits, without a second thought
With my current build, I have zero problems with Plantera. Golem takes a moment. I haven't yet managed to kill the Empress of Light, and my attempt at Moon Lord ended quickly with my character's death.
#terraria

2025-03-21 06:46:44 GMT

Imagine taking a totaled Tesla, hacking its computer and running a Fediverse instance on it, as the steel body is slowing overgrown with vines

2025-03-20 19:21:57 GMT

What is your favourite type of pole?

2025-03-16 19:13:19 GMT

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there is only one way to find out

2025-03-16 18:37:52 GMT

And second question: I have this PCIe wireless network card and I'm wondering if I could put an SSD in that slot?
https://cdn.fosstodon.org/media_attachments/files/114/173/557/403/628/741/original/2db9693a2e29c139.jpg

2025-03-12 13:34:34 GMT

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wow, it must have been like 15 years since I listened to them the last time

2025-03-09 13:11:15 GMT

I'm on a train.
(For the US followers, it's something like a lot of pickup trucks one after another and riding on metal highways)

2025-03-08 09:13:40 GMT

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on the coast of the Baltic :) it's good to see them, but seeing my grandparents becoming more and more weak is hard

2025-03-07 17:57:53 GMT

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I'm on a train going to visit my family

2025-03-02 16:04:57 GMT

I was watching one of Big Clive's video and one thing dawned on me:
There is an uninterrupted length of metal between your computer and at least one power plant, and more probably tens, hundreds of them. Hundreds of kilometers of continous metal without any gaps.

2025-02-25 07:57:27 GMT

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you are very much right, just one comment: I would not call KO "center-left". They are doing a continuous march to the right.
Btw, love your blog :)

2025-02-20 10:07:33 GMT

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thermal solar power made sense when the PV panels had low efficiency. Not with better PV panels, thermal solar lost its edge. Which does not mean that solar in general is not usable.

2025-02-20 07:01:33 GMT

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huh, weird. Maybe you would need to unread a book and add it again?

2025-02-20 06:54:13 GMT

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I think you need to click on "Move book", the choose "Read", and you will be able to edit the dates
https://cdn.fosstodon.org/media_attachments/files/114/034/896/945/194/229/original/2aae1c26cb02d16a.png

2025-02-19 17:54:06 GMT

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Yes! I still regularly take part in a few of them.

2025-02-15 10:00:27 GMT

"Reclaiming traditional fermentation practices has a key role to play in shifting towards a degrowth food system"
My family has always been making preserves. Cabbage, cucumbers, zucchinis. Apple juice, cherry jam. Tomato sauce. A cellar full of jars was a normal, everyday thing in my childhood.
And I am continuing this, making the same things, and adding new ones. I just made a new batch of kimchi.
Making your own food is awesome.
https://www.resilience.org/stories/2025-01-24/power-to-the-microbes-reclaiming-traditional-foods-for-a-degrowth-food-future/
#Degrowth #sustainability #SolarPunk

2025-02-09 11:48:04 GMT

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I've read somewhere that those are actually still more precise than the cheap digital ones

2025-02-08 12:06:25 GMT

It's working! My Portable LTE modem!
Well, "portable". But it can work for at least a few days off-grid.
https://cdn.fosstodon.org/media_attachments/files/113/968/172/829/378/038/original/28288c02ffb44efe.jpg

2025-02-08 09:46:38 GMT

I am positively surprised that this contraption works without any special configuration. I now have LTE internet as a backup connection for home. #mikrotik
https://cdn.fosstodon.org/media_attachments/files/113/967/624/566/941/294/original/1a8ebc5c0239c670.jpg

2025-02-01 17:08:50 GMT

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but there's not DIY fun in that

2025-02-01 17:06:10 GMT

New blog post!
In which I show how I am powering a typical 120mm PC case fan from a USB port to quietly cool my Raspberry Pi cluster.
CW: bad soldering skills
https://stfn.pl/blog/59-powering-fans-from-usb-pi-cluster/
#RaspberryPi #boinc #diy_electronics #blog
https://cdn.fosstodon.org/media_attachments/files/113/929/701/124/944/841/original/5317f30d8a81a89b.jpg
https://cdn.fosstodon.org/media_attachments/files/113/929/716/292/484/555/original/36dc3c279b625926.jpg

2025-01-30 19:20:24 GMT

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maybe?

2025-01-30 16:55:11 GMT

Ok, who's going to guess what this is for?
https://cdn.fosstodon.org/media_attachments/files/113/918/349/710/061/694/original/1df8d5194bd34807.jpg

2025-01-19 21:34:28 GMT

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Home Assistant integration with Electricity Maps is a a cool feature, and also shows very clearly that I live in Poland, a country that loves its coal
https://cdn.fosstodon.org/media_attachments/files/113/857/162/254/264/715/original/76ee308f102c5944.png

2025-01-19 18:08:31 GMT

New blog post!
In which I answer the question that many homelabbers have: "How much electricity is my home server using?"
The short answer is 70W at idle. The long answer? It's in the blog post. And again BOINC shows up.
https://stfn.pl/blog/57-home-server-electricity-usage/
#blog #homelab #smarthome #zigbee #HomeAssistant #boinc
https://cdn.fosstodon.org/media_attachments/files/113/856/334/789/745/337/original/035c9b67fa4c58aa.png

2025-01-16 07:26:55 GMT

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oh come on, it was just a beenign joke

2025-01-15 21:47:24 GMT

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maybe they're in a beesness meeting

2025-01-11 10:46:58 GMT

New blog post!
This time I'm talking about my Raspberry Pi cluster, and there's a bit of everything, Kubernetes, Ansible, BOINC, all that magic.
https://stfn.pl/blog/56-kubernetes-boinc-raspberry-pi-cluster/
#blog #RaspberryPi #kubernetes #k3s #Ansible #boinc
https://cdn.fosstodon.org/media_attachments/files/113/809/306/506/968/348/original/c32f6498bdb2bb0c.jpg

2025-01-10 14:20:21 GMT

Ok, this is going to be a weird question:
Has anyone managed to set a custom video background in MS Teams under Linux? All docs says it's not possible.

2025-01-05 09:54:15 GMT

Gaah, why do the Linux desktop file managers* simply hang and die when I have an NFS share pointing to a computer that was turned off? It's not an impossible case, they should handle it gracefully
* so far tested in Thunar and Dolphin

2024-12-31 13:33:25 GMT

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it was not the Eu that introduce the mess that is USB-C, it was the private companies. EU is trying to sort it out

2024-12-31 13:28:46 GMT

WHY do I have so many cables.
Why do I have at least three HDMI-HDMI cables, two DP-DP and one HDMI-DP?

2024-12-29 16:27:36 GMT

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cheers! *raises glass*

2024-12-29 16:18:26 GMT

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hmmmm, I don't remember posting it before, but maybe you are not going mad and I am getting dementia

2024-12-29 16:07:14 GMT

I reached the point when I'm doing something in VSCode, and then I stop and think *eh, I can do it faster in neovim*

2024-12-28 15:15:26 GMT

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yep, basically the same thing

2024-12-28 14:37:59 GMT

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of course. Of money and fame

2024-12-28 09:22:55 GMT

I am constantly NOT insulted on this platform.

2024-12-23 11:17:21 GMT

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at least you are not blocked, only your posterior part!

2024-12-22 07:39:42 GMT

Is this some new kind of spam on Fedi? I haven't tried the links yet
https://cdn.fosstodon.org/media_attachments/files/113/695/337/875/249/372/original/f2856f4295d30f69.png

2024-12-20 07:26:15 GMT

You know what is one of the things I love about governmental, non-commercial space exploration? That everything has to be open. All research done by NASA is shared in the public domain. ISS telemetry is also open and can be read real-time. Like this webpage is doing:
https://iss-mimic.github.io/Mimic/
Open data vs corporate secrets.
#space #nasa

2024-12-19 16:21:27 GMT

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Right, thanks

2024-12-19 16:19:52 GMT

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and it's a boot drive?

2024-12-19 16:11:36 GMT

That is a very long shot, but I am looking for people who have motherboards with a 1150 socket and a Z97 chipset. Preferably from Gigabyte.
Do you have experience with using a boot NVMe drive on a PCIe -> NVMe adapter card?
According to the BIOS docs, NVMe support has been added, but I am not sure about the boot part.

2024-12-17 20:49:11 GMT

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Just listened to the podcast, and I can relate so much, I also just started my own GTS instance. Thank you for making that backup script, for my instance I configured Borgmatic as the docs suggest, but I will for sure take a look at your solution.

2024-12-14 15:25:38 GMT

I watched "Buy Now: The Shopping Conspiracy" yesterday and that reignited my hatred towards a) Amazon b) plastic
https://www.netflix.com/pl-en/title/81554996?preventIntent=true

2024-12-14 15:19:53 GMT

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i installed it as a LXD container in my homelab and has been working fine for me

2024-12-14 14:03:01 GMT

@npub1tud…8du9 hello there

2024-12-13 12:42:23 GMT

Interesting blog post about having your own balcony solar panels. The author writes in the context of Switzerland, I assume in other countries it's not that easy.
https://michael.stapelberg.ch/posts/2024-12-10-solar-panel-for-your-balcony/

2024-12-06 15:27:50 GMT

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I like it!

2024-12-06 15:09:22 GMT

What is the weirdest thing that could be rack mounted and PoE powered?

2024-11-30 19:26:00 GMT

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I know that running ZFS on something that that <500MB of RAM does not make sense, but I wanted to do it for the giggles.
I'm suspecting that the Zero 2 mix of a relatively fast CPU with a minuscule amount of RAM makes stuff break more than on the original Zero.

2024-11-30 19:24:15 GMT

A long time ago I made a NAS running ZFS on a Raspberry Pi Zero. It took something like 12 hours to install ZFS with DKMS on the Pi Zero, but eventually it worked.
Today I wanted to do the same on the Pi Zero 2, but I could not install ZFS, I was getting kernel panics, something about I/O errors in the swap. Happened again even when I updated the swap to 2GB.

2024-11-30 18:01:39 GMT

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And it's... fixed?
https://bugs.kde.org/show_bug.cgi?id=442379

2024-11-30 18:00:41 GMT

I'm on Kubuntu 24.10, running Plasma 6.1.5 on Wayland. I prefer my scrolling direction reversed ("natural scrolling"). All is fine, but the sound widget in the traybar keeps the old scrolling direction. Lol.

2024-11-26 18:22:17 GMT

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Last year I switched from an iPhone 7 to a Fairphone 4, and the difference was immense, but of course, the iPhone 7 was almost 7 years old. I am very happy with my Fairphone, and if I ever need to replace it, I will go with the 5 or 6. For me the selling points are the battery and the clean Android. I also am not ready to go to a degoogled alternative, I am too dependent on the Wallet.

2024-11-22 20:10:59 GMT

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Here I wrote down how to create a PyPi package, it's much simpler and faster than I thought
https://stfn.pl/blog/52-published-my-first-python-package-to-pypi/

2024-11-22 19:13:31 GMT

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And PyPi releases some stats about the packages, but with the Dead Internet Theory and all that, I have no idea if anyone actually used my package, or is it just all bots

2024-11-22 19:09:28 GMT

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I have to say, it's fun to have your own PyPi package, because there's quite a few additional Python and git things you need to learn.

2024-11-22 15:27:40 GMT

zambretti-py v.0.0.5 has been released!
This release provides the ability to load atmospheric pressure readings from CSV files, either generic or those generated by #HomeAssistant
https://pypi.org/project/zambretti-py/
#python #pypi #weather

2024-11-19 21:21:10 GMT

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btw, I am of the opinion that Chernobyl was two disasters in one: The first being the actual explosion, fallout, evacuation etc And the second being a cause of stopping the building of new NPPs worldwide. Without Chernobyl we would have had much more clean energy.

2024-11-19 21:11:10 GMT

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I remember him mostly as a comedian from the early days of Youtube, let's see how he fares today

2024-11-19 16:04:34 GMT

New blog post!
There's a new Python package on PyPi, it's about forecasting the weather, and I am the author!
In the blog post I am talking about my first time publishing to PyPi, how stressful is to show one's work publicly, but also to show how easy it is to be a part of PyPi.
https://stfn.pl/blog/52-published-my-first-python-package-to-pypi/
#python #pypi #weather #weatherforecasting #blog #programming
https://cdn.fosstodon.org/media_attachments/files/113/510/452/068/435/086/original/667709b03f77f2d0.jpg

2024-11-17 19:12:59 GMT

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It is!

2024-11-14 07:56:20 GMT

Hey, have you heard about the music genre of money rock?
The songs are made of tariffs

2024-11-13 13:30:20 GMT

random idea:
You know that "writing indicator" showing that somebody is writing in the chat?
Something like that, but appearing at the top of your blog when you are writing a new entry.

2024-11-12 17:49:03 GMT

It has now been confirmed that Universe@Home has ended. With the passing of Prof. Krzysztof Belczyński, there is nobody else to carry on the project. Sad times for CAMK and for BOINC.
Full update:
https://universeathome.pl/universe/forum_thread.php?id=754
#BOINC #astronomy #space

2024-11-08 10:46:08 GMT

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ha, looks like they finally got one. When I first learnt about G@H they did not have a domain and I have had that IP address in my bookmarks ever since. Thanks :)

2024-11-08 08:10:48 GMT

In the #BOINC world, Christmas came early, first WCG ARP started sending workunits again, and now Gaia@Home came back from the dead! (tbh they returned a month ago, I just didn't notice until today)
http://150.254.66.104/gaiaathome/
(Yes, they do not have a domain)

2024-10-31 21:35:12 GMT

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I remember the initial wave of interest for Google+, I made an account there, and really like the idea of circles. And yes, it almost immediately became a ghost town, in those times Facebook was everything.

2024-10-31 20:33:10 GMT

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If you set a very long task buffer size and downloaded much more tasks than you could crunch in time, then yes, but with reasonable settings there is no problem with returning tasks before the deadline

2024-10-31 16:00:47 GMT

Another blog post on testing the performance of Raspberry Pi 5.
This time I was testing if using the NVMe HAT made the Pi 5 crunch BOINC faster.
And the results are mixed. I crunched two projects in which I usually participate, and in one of them the speed gains were 30%, and in the other one there was basically no difference.
More details in the blog post:
https://stfn.pl/blog/50-pi5-nvme-performance-in-boinc/
#RaspberryPi #RaspberryPi5 #BOINC #blog
https://cdn.fosstodon.org/media_attachments/files/113/402/835/146/478/673/original/7cdd5e9a54de809f.jpg

2024-10-29 20:47:00 GMT

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And a part of this, let's say, tradition, is writing 21:37 on social media whenever there is 21:37 on the clock.

2024-10-29 20:46:14 GMT

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haha, ok :)
In short, 21:37 is the exact time when the Pope John Paul II died.
And here in Poland his final days have been widely televised, widely shown all over the media. When he died, 21:37 was repeated again and again everywhere.
And so came a reaction, 21:37, as the whole JP2 person became a meme, and since then, 2137 is often used as a random number in a humorous way.
This is a very short introduction into the massive cultural phenomena of pope memes in this country

2024-10-29 20:39:47 GMT

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one of the best things I witnessed in life was teaching the significance of 2137 to a group of Dutch people

2024-10-29 20:39:03 GMT

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this will never get old

2024-10-29 20:38:02 GMT

21:37 🌕

2024-10-25 19:37:14 GMT

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thank you!

2024-10-25 13:18:40 GMT

I'm thinking of publishing a package to PyPi. Does anyone here have any experience with it? Tips? Tricks? Warnings?
#python #pypi

2024-10-23 05:36:11 GMT

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half as much as you would get from two pieces of wood, of course

2024-10-22 17:43:15 GMT

Doing a project on the Pi 5 with a bit of benchmarking, and so far the results are very promising, more info soon :)
https://cdn.fosstodon.org/media_attachments/files/113/352/307/800/380/671/original/672f13da45cead40.jpg

2024-10-20 21:55:51 GMT

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I trust my electronics skills enough to use 1850s in simple applications :)

2024-10-20 08:45:19 GMT

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wow, that looks very vintage

2024-10-19 10:33:39 GMT

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I sometimes talk about homelab stuff in my blog :3

2024-10-19 09:11:02 GMT

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In general yes, but I think this NVMe, living in the open, will be happier this way then being enclosed inside a very warm laptop

2024-10-19 09:00:16 GMT

New blog post!
I bought an NVMe HAT for my Pi 5, and I am very impressed with the results, the Pi feels like a totally different computer. The boot is almost instant now.
https://stfn.pl/blog/49-my-pi5-got-a-hat/
#blog #RaspberryPi #RaspberryPi5
https://cdn.fosstodon.org/media_attachments/files/113/333/246/286/264/194/original/1c230ff8af488c6a.jpeg

2024-10-17 14:13:46 GMT

Yes, I also took a photo of that comet. And I wrote a few words about how I did it, and how you can do it.
https://stfn.pl/blog/48-comet/
#blog #Astronomy #astrophotography #comet #Comet2023a3
https://cdn.fosstodon.org/media_attachments/files/113/323/161/280/044/921/original/e77d7b2fff4e168a.jpeg

2024-10-16 19:57:22 GMT

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that's also a way

2024-10-16 14:47:29 GMT

I don't sell or throw away old drives. I put them in USB enclosures and use as pendrives. Which means that right now I have six such "drive pendrives". That's a bit much.

2024-10-15 07:51:12 GMT

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On the topic of WebUSB: It's not only used for phones, it's also the suggested way to flash LoRa devices for #meshtastic https://flasher.meshtastic.org/