Sebastian Krzyszkowiak

https://social.librem.one/@dos

Hi, I'm dos. Silly FLOSS games, open smartphones, terrible music and more. 50% of Agata @ Holy Pangolin Studio (npub1czy…4d0w); 100% of dosowisko.net. he/him/any. I don't receive DMs.

Homepage: https://dosowisko.net
Games: https://dos.itch.io
Holy Pangolin: https://holypangolin.com
Liberapay: https://liberapay.com/dos

Public Key

npub18pwu7p28yvpemejp7wna5hdxkwfcnyqv0c0vrcg8re0fcvzujtfs2lyr8q

NIP-05 Address

dos_at_social.librem.one@momostr.pink

Profile Code

nprofile1qqsrshw0q4rjxquaueql8f76tknt8yufjqx8u8kpuyr3uh5uxpwf95cpz3mhxue69uhhyetvv9ujuerpd46hxtnfduqs6amnwvaz7tmwdaejumr0dsws6wel

Publishing to

relay.damus.io

nos.lol

Author Public Key

npub18pwu7p28yvpemejp7wna5hdxkwfcnyqv0c0vrcg8re0fcvzujtfs2lyr8q

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Last Notes

2026-05-01 06:53:33 UTC

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Millipixels has really overstayed its welcome, it was meant to be a temporary pile of hacks to facilitate driver development, but - perhaps inevitably, as makeshift does - it stayed there much longer than anticipated. I have spent a few hours polishing some of its roughest edges, finishing up past WIP work and hacking some desperately needed quality-of-life improvements in.
Along with e.g. rotation sensing and better QR code detection, it can now also adjust frame rate to extend exposure time.
https://social.librem.one/system/media_attachments/files/022/961/574/original/899d9ac71fca64b4.jpeg
https://social.librem.one/system/media_attachments/files/022/961/576/original/bf34469d7873cfa7.jpeg
https://social.librem.one/system/media_attachments/files/022/961/580/original/b3719047e29ec71e.jpeg
https://social.librem.one/system/media_attachments/files/022/961/581/original/dc3256af5b97f4a4.jpeg

2026-05-01 06:39:08 UTC

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Here's a few cat-less examples too for some variety.
The processing is still pretty basic, you can easily get better results out of Darktable etc. but it should nevertheless be a big improvement for what you get by a simple point-and-shoot.
https://social.librem.one/system/media_attachments/files/022/961/472/original/94418cee9964f356.jpeg
https://social.librem.one/system/media_attachments/files/022/961/477/original/5dc1faac2deb1cf0.jpeg
https://social.librem.one/system/media_attachments/files/022/961/479/original/ac7656525c669c77.jpeg
https://social.librem.one/system/media_attachments/files/022/961/493/original/71d071259d6d3933.jpeg

2026-05-01 06:27:37 UTC

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Here's a before-and-after example. There's much more (done with an early version of this code) in my old thread: https://social.librem.one/@dos/115091388610379313
https://social.librem.one/system/media_attachments/files/022/961/444/original/96a97cecf3342193.jpeg
https://social.librem.one/system/media_attachments/files/022/961/446/original/dc06272d5e43a60d.jpeg

2026-05-01 06:21:55 UTC

The new version of Millipixels, now in crimson-updates-proposed, significantly improves the way photos are developed by default. No need to develop the RAWs on your own to get rid of that greenish retro look anymore. Time to update and show off your cats on the fedi 😺
#shotonlibrem5 #librem5 #shotonmainline #pureos #gnu #linux #linuxmobile #linuxphone #linuxsmartphone #mobilelinux #catsofmastodon #cats #camera
https://social.librem.one/system/media_attachments/files/022/961/339/original/1adeef28438ce986.jpeg
https://social.librem.one/system/media_attachments/files/022/961/340/original/39c3190a71dc6e67.jpeg
https://social.librem.one/system/media_attachments/files/022/961/359/original/3da5b00c2f4f1272.jpeg
https://social.librem.one/system/media_attachments/files/022/961/362/original/e98322c9ecb764d4.jpeg

2026-04-13 12:40:11 UTC

Linux 7.0 has now been tagged, coming with 19 commits upstreamed from the Librem 5 tree - two by NXP and the rest by yours truly on behalf of @npub1qy0…nsak. Three more are already queued for 7.1.
While the mainline kernel still can't drive the display without extra patches, it's very close now 👀
#linuxmobile #mobilelinux #linux #kernel #librem5 #mainline #linuxphone #linuxsmartphone #shotonlibrem5 #purism #nxp #imx8mq #cats #catsofmastodon
https://social.librem.one/system/media_attachments/files/022/824/219/original/a2ee7da65ef78153.jpg

2026-04-06 21:04:15 UTC

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See https://social.librem.one/@dos/115952734691702400

2026-04-02 01:52:11 UTC

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Incidentally, I think attempting to apply the feedback from the gauge series would be a good start! It's self-contained and I haven't touched it for a while so we wouldn't step on each other's feet, as I've been reworking some other stuff for mainlining recently too.
The TPS65982 stuff is very entangled with other drivers, firmware config etc. so I'd leave that one for later.

2026-04-02 01:40:14 UTC

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Similar story with fuel gauge patches, they need some changes: https://lore.kernel.org/lkml/20220318001048.20922-1-sebastian.krzyszkowiak@puri.sm/
Generally, aside of really recent stuff, things that stay downstream usually have a reason to stay there. Some reasons are easier to get rid of than others though, so I can help point you in their direction.

2026-03-31 02:06:31 UTC

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Yes, feel free to ping me there.
Regarding USB there is https://lore.kernel.org/all/20260316-eth-null-deref-v1-1-07005f33be85@google.com/ - in next but hasn't reached stable trees yet, so you may be missing that.

2026-03-27 01:13:58 UTC

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Lots of things to do there! Just let's make sure to coordinate :) Are on you the community Matrix channel?
There are many things in there that could be reworked for mainlining relatively easily, but I have a whole distro to maintain as well and nobody else has really worked on the kernel for a while now, so help would certainly be appreciated ☺️

2026-03-27 01:00:33 UTC

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Note that there's a 6.18 tree for some time now where the only things left to do aside of cleaning it up is to forward-port the Redpine and DisplayPort/HDMI drivers. The latter I already have mostly working by pulling the latest version from the NXP tree, but I haven't yet decided if this is actually how we want to proceed with it.
I have already sent several upstreamable patches recently that got applied for 7.0 and 7.1, but most of the others will need some extra work.

2026-03-16 20:48:38 UTC

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I wanted to know whether a regular love2d compiled on whatever platform will be able to run it, so I take that as a "yes" 😁

2026-03-16 20:10:06 UTC

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I see it's using LÖVE - does it work with the regular upstream interpreter?

2026-03-16 00:40:01 UTC

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This seems about the same as on Librem 5 then with its 4-5 hours of active use. It's idle time that's more challenging there.

2026-03-02 15:08:54 UTC

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So has the one I do, it gets tons of flak, but it hits somewhat different when it's not some random confused "fan" but the main face behind a well-known project that threatens you personally to hamper your professional carrier just because they didn't like getting their bullshit corrected.
And I wouldn't bother to reply if it was just about me. It's an established pattern.

2026-03-02 14:45:49 UTC

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Well, obviously, you haven't been on the receiving end of that.

2026-03-02 14:40:10 UTC

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In this particular case it really goes much further than just "shit-slinging between projects".

2026-03-02 13:45:15 UTC

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Yeah, there's a reason I have their accounts blocked everywhere 🙃

2026-01-31 20:52:45 UTC

#ScummVM has just released a stable version that supports a game I made a while ago. Does that mean I'm officially old...err, retro now? 😓🧓
Congrats @npub1k7x…ceaf! 🎉

2026-01-04 15:45:27 UTC

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However, I am extremely concerned about people who believe (or want others to believe) that these systems may perform all of the functions that humans perform to get things done in the world, but better, as these people actually have real potential to deal a fair share of tangible damage to everything around them.

2025-11-06 19:36:33 UTC

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I believe that some people who are capable of moving away from Android haven't done so yet, for whatever reason. Sometimes they may be capable, but unwilling to give some convenience away - and using Android in a society that expects you to use it is surely more convenient. It's up to them to take action to make things better, not "manufacturers".
There are also many people who aren't, but you can't expect those to move yet. Obviously. We still need to pave them the way there.

2025-11-06 19:36:06 UTC

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You're attributing things to me that I've never said. That's pretty damn un-excellent.
Would I prefer it to be an open platform? Of course I would, but it never really was, otherwise we wouldn't have this discussion right now. It was made to make this possible. We can't rely on Google keeping it "open enough" and we can't rely on the society not making it mandatory to use without active resistance, which includes (but isn't limited to) moving away from Android whenever possible.

2025-11-06 19:05:10 UTC

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The phones already exist; now it's up to users to adopt them and, if necessary, improve them to match their needs.
I don't see Google closing Android down as a threat to me. If anything, it may make more people actually interested in the alternatives. What is an actual threat to me are institutions and companies assuming that I'm running either Android or iOS. As things are right now, I can manage to live without them just fine, but things keep moving in the wrong direction.

2025-08-04 20:48:57 UTC

I have published the snippet of code that implements a GPU-based ISP with bunch of corrections and encodes video in real time on the Librem 5. Feel free to take parts of it and use in your apps and frameworks... or record your cats 😼
https://source.puri.sm/-/snippets/1223
#linuxmobile #mobilelinux #linuxphones #camera #librem5 #shotonlibrem5
https://social.librem.one/system/media_attachments/files/020/853/963/original/3ad4165632d858c4.mp4

2025-05-19 19:27:21 UTC

something old, something new, something perfect
#shotonlibrem5 (with not so perfect quality, lots of space for improvements there 😂)
#music #rock #muzyka #perfect #drapała
https://social.librem.one/system/media_attachments/files/020/208/792/original/9f04a7e58414c8ec.mp4

2025-05-16 13:44:26 UTC

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FWIW, L5's Vivante GC7000 Lite can also do Vulkan

2025-05-14 14:25:19 UTC

Librem 5 protip: listening to music on a cheap pair of tiny in-ear headphones in a noisy environment? Enable HD Bass to wake the bass guitarist up:
amixer -D hw:L5 sset 'HD Bass' on
#librem5 #mobilelinux #linuxmobile #linuxphone #shotonlibrem5
https://social.librem.one/system/media_attachments/files/020/165/231/original/ac74bfd95462ac1d.jpeg

2025-05-09 13:14:09 UTC

👀
#librem5 #linuxmobile #mobilelinux #nxp #imx
https://social.librem.one/system/media_attachments/files/020/123/258/original/101c06fab9223edf.png

2025-04-27 18:29:25 UTC

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Check out reptyr - it should be able to help in such cases assuming you can still access via ssh.

2025-04-14 18:15:36 UTC

The Librem 5 (and mobile GNU/Linux in general) has matured a lot over the years, but there are still some areas where the software stack is behind the hardware capabilities. Some of them are often talked about, such as camera quality or GPU (GLES3/Vulkan/OpenCL), but there are also lesser known ones in need of some plumbing and middleware infrastructure. Maybe you'll find something interesting to hack on there?
1/N 🧵
#mobilelinux #linuxmobile #librem5 #linuxsmartphones

2025-03-10 19:11:40 UTC

whooosh
#phosh #phoc #mobilelinux #linuxmobile
https://social.librem.one/system/media_attachments/files/019/602/538/original/d13ff0a3ad707072.mp4

2025-02-20 10:30:26 UTC

it's a lazy thursday #cats #catsofmastodon #shotonlibrem5 #everyday #is #caturday
https://social.librem.one/system/media_attachments/files/019/438/921/original/a2eb9324e93662d6.jpeg

2025-02-15 18:15:56 UTC

Many years ago I spent some time playing with running a graphical interface from chrooted Debian userspace on a jailbroken 1st gen Kindle Paperwhite. I posted a video that showed it and called it "Debian on Kindle Paperwhite". Some tech media had then picked it up and reported on Debian running on Kindle.
I'm sorry, it's all my fault. All those people calling Halium devices "real Linux phones" are just my karma coming back 😭 #mobilelinux
https://social.librem.one/system/media_attachments/files/019/397/611/original/690540212829bb7e.png

2025-02-03 13:00:45 UTC

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Actually, which project could be considered the first one? 🤔 Let's ignore PDAs as their history is longer.
The earliest one I'm personally aware of is @npub1mq4…wwak's OpenEZX from 2005, targeting Motorola's Linux phones.
https://web.archive.org/web/20051029042914/http://www.openezx.org/

2025-02-02 14:14:06 UTC

Seems @npub1vnu…8mqn is now successful enough for some people to think it was the first community-run GNU-like/Linux distro for phones.
Let me remind you that SHR would turn 17yo this year, and it wasn't even the first one. I bet some #postmarketOS contributors are younger than that 😄
#mobilelinux
https://social.librem.one/system/media_attachments/files/019/275/889/original/6f4584d13638023a.png
https://social.librem.one/system/media_attachments/files/019/275/890/original/10742624038b7c35.png
https://social.librem.one/system/media_attachments/files/019/276/058/original/3e548624468f6c90.png

2025-01-22 07:37:58 UTC

Some come out of the closet, some prefer to stay inside. #catsofmastodon
#shotonlibrem5 (low light, high exposure time)
https://social.librem.one/system/media_attachments/files/019/169/025/original/1f588463eb94aa9a.jpeg

2024-10-18 16:28:39 UTC

Looks like my old patch for workarounding Electron/Chromium bugs in Squeekboard (inspired by a solution used by Gamescope) has been finally merged and released in v1.42.1. It used to exacerbate another preexisting issue, but it now got fixed too. No more randomly broken keys in poorly behaving apps! 😌
https://gitlab.gnome.org/World/Phosh/squeekboard/-/merge_requests/598
#phosh #linuxmobile #mobilelinux #squeekboard #wayland

2024-10-01 19:30:58 UTC

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...or even N900 in the decade before L5 😂

2024-09-21 18:35:19 UTC

Purism has released the Librem 5's mechanical design, adding to already available schematics and PCB layouts.
https://source.puri.sm/Librem5/3D_designs/-/blob/master/Librem5-Chassis/librem-5.step
I think that may make it the first proper Open Hardware smartphone out there.
#purism #librem5 #linuxmobile #linuxsmartphones #openhardware #oshw #cad
https://social.librem.one/system/media_attachments/files/018/137/850/original/d9b109806947c13c.png

2024-09-16 16:16:29 UTC

Last chance to get "The Art and Secrets of Karambola" art book by @npub1czy…4d0w at a introductory 10% discount - ends in an hour!
Itch: https://holypangolin.itch.io/the-art-and-secrets-of-karambola
Steam: https://store.steampowered.com/app/3172920/The_Art_and_Secrets_of_Karambola/
#art #artbook #indiegame #indiedev #gamedev #games #karambola #itch #itchio #steam
https://social.librem.one/system/media_attachments/files/018/094/539/original/e49c6c73a5f7242c.png

2024-09-02 17:08:03 UTC

"The Art and Secrets of #Karambola" - a digital 92-page #artbook heavily illustrated with yet unpublished sketches, drawings, paintings and locations from the game - is now out!
Agata (@npub1czy…4d0w) reveals her thoughts on the curious fruity characters’ personalities and backstories, as well as some difficult decisions she had to make during the design process.
Buy on #Steam or @npub1lu8…v9tm:
https://store.steampowered.com/app/3172920/The_Art_and_Secrets_of_Karambola/
https://holypangolin.itch.io/the-art-and-secrets-of-karambola
#gamedev #indiedev #art #mastoart #indiegame #itchio
https://social.librem.one/system/media_attachments/files/017/978/535/original/95abc49fe2f7d591.png

2024-08-31 18:34:15 UTC

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I had been there many years ago, confused about why shouldn't I keep debian/ dir upstream even though I was the one packaging my own thing in Debian. Only after getting more familiar with how things work I realized it makes perfect sense given the Debian's processes. I don't think it's fair to characterize it as "hostile".
It may still be valuable to maintain debian/ upstream though, but distinct from the distro packaging (usually for CI or for self-compiled dev builds).

2024-08-23 17:56:26 UTC

The bird-thoughts are chirping that something beautiful is coming soon to Steam and @npub1lu8…v9tm. #gamedev #art #mastoart #artbook #indiegame #indiedev #steam #itch #itchio @npub1czy…4d0w https://store.steampowered.com/app/3172920/The_Art_and_Secrets_of_Karambola/

2024-08-21 15:21:09 UTC

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ChatGPT helped me once. I asked it about doing something in the PDF syntax. I could then completely ignore the nonsense it spewed, but use the terminology it used to find the relevant part of spec instead of Adobe Acrobat tutorials that search engines were very stubbornly providing me with 😜

2024-08-19 10:57:19 UTC

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Seems like nobody was reaching for this low-hanging fruit, so I did it myself:
"Glowup" is a quickly hacked up thing that lets you glow your Librem 5 photos up with one click right on the phone, using #darktable and about 30 seconds of processing.
https://gitlab.com/dos1/glowup
#librem5 #mobilelinux #linuxmobile #linuxsmartphones #shotonlibrem5 #catsofmastodon (late)#caturday #myfirstlibadwaitaapp 😜
https://social.librem.one/system/media_attachments/files/017/855/977/original/82f6754b0952da08.png
https://social.librem.one/system/media_attachments/files/017/856/104/original/f2394cc5fcbbf4c1.png
https://social.librem.one/system/media_attachments/files/017/856/109/original/f99aa575afad5448.png
https://social.librem.one/system/media_attachments/files/017/856/110/original/529a655211945c2c.png

2024-08-10 16:34:43 UTC

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The hardware design is now released at https://gitlab.com/dos1/debubo
#debubo #kicad #diy #electronics #librem5 #stm32 #usbpd #oshw
https://social.librem.one/system/media_attachments/files/017/780/132/original/22d620cdcf6b961d.jpeg

2024-08-09 09:13:18 UTC

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Joints seem to be better now, but I didn't mention one thing - no matter how much hot air I blow at it or what I do with soldering iron, I can't seem to be able to get rid of a short between D+/D- on a passthrough port 😭 It's not critical, the important parts are already operational, but it would be nice to get USB 2.0 passthrough working too! I'm assuming it's on the USB-C plug, but it all looks perfectly fine to my eye 😫 I should finally get some proper flux I guess... #soldering #diy

2024-08-09 05:39:10 UTC

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Took me 3 days of soldering, but it works!
I can connect it to a Librem 5 and it automatically does all the needed PD stuff to expose its UART over USB-C 😁 It's also capable of a lot of other PD magic as a USB PD analyzer / injector / filter.
However, while these solder joints made a good job lasting till I got the firmware PoC working, it doesn't seem like they're going to last much longer... More soldering ahead 😫
#debubo #kicad #stm32 #usbpd #librem5 #shotonlibrem5 #diy #electronics #oshw
https://social.librem.one/system/media_attachments/files/017/766/407/original/680a3ee0d443ed02.jpeg
https://social.librem.one/system/media_attachments/files/017/766/408/original/e851771b1121067a.jpeg
https://social.librem.one/system/media_attachments/files/017/766/409/original/ef4f4ed6d44ccc89.png

2024-07-16 22:23:53 UTC

I don't know yet if the board is going to work, but I know it's going to be pretty. #kicad #ee
https://social.librem.one/system/media_attachments/files/017/557/066/original/902652cfa8c5ee67.png
https://social.librem.one/system/media_attachments/files/017/557/086/original/a66f7b82b39e4526.png

2023-09-23 17:42:26 UTC

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That said, you don't need huge powerful but complex tools like #darktable or #rawtherapee to make your photos look better. Imagine a simple to use app that lets you do basic stuff on the phone, like white balance or contrast correction, which could then take its time exporting at full res with all the heavy noise reduction algos without annoying the user while taking photos.
Does that sound like something you'd like to work on? 😁
#mobilelinux #linuxmobile #linuxsmartphones #librem5 #pinephone

2023-09-23 17:41:57 UTC

For practical reasons, photos that you #ShotOnLibrem5 are processed into JPEGs with lower quality than what the camera can do. There are some (complex) ways in which this processing could be made faster and therefore cram more pixels and algorithms that make things prettier, but meanwhile...
Each photo you take is stored as both raw DNG and processed JPG - so you can go back to raw data and retroactively gain quality. See https://dosowisko.net/l5/photos/ for an example.
(cont.)
#librem5 #mobilelinux
https://social.librem.one/system/media_attachments/files/014/853/953/original/43c2b9ce2c33d691.jpeg