Remote

JCM

@jcm@wafrn.jcm.re

wafrn 2026.08.01

Hello World!

I am a Computer Engineering student in Berlin and do low-level programming, cursed C++ projects, FPGA stuff, and self-hosting in my free time :3

I absolutely love and adore my cute girlfriend @xcyndi.bsky.social!

I like modern C++, Vulkan, WebAssembly, VHDL, FPGAs, SBCs, Kubernetes, game modding, Ganqing Impact, and Cyberpunk 2077.

Feel free to call me a cute sheepy and/or bully/tease me sometimes~ ;3

79 Followers

209 Following

33 Posts

Joined November 01, 2025

GitHug:

https://git.jcm.re/jcm

GitHub (less cute):

https://github.com/JnCrMx

GPG:

7B839F0DA64069DD7832BB802F536DE3E9EC3AD8

🧄:

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Posts

JCM @jcm@wafrn.jcm.re · Aug 04, 2026

Replying to @luna@lunar.place

@luna@lunar.place I've only ever had very cheap and basic ornamental (is this the right word?) ones (back in my "femboy phase" 😅) and I eventually managed to lose those :/ Maybe I should get (or make) myself some proper ones one day :3

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JCM @jcm@wafrn.jcm.re · Aug 03, 2026

Boosted by

Furbland's Very Family-Friendly Account™ @GroupNebula563@mastodon.social

This button is scaring me 😨 #why-are-conferences-so-damn-expensive

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JCM @jcm@wafrn.jcm.re · Aug 03, 2026

Replying to @laru@pleroma.laru.dsrv.x7q.eu

@laru@pleroma.laru.dsrv.x7q.eu @mldkyt@soc.mldkyt.com That also means that you'd need to defederate any Fedi instances doing regular database backups, as those typically require manual intervention for propagating post deletions through backups (if they even do it at all).

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JCM @jcm@wafrn.jcm.re · Aug 03, 2026

Replying to @laru@pleroma.laru.dsrv.x7q.eu

@laru@pleroma.laru.dsrv.x7q.eu @mldkyt@soc.mldkyt.com Maybe I explained my plan badly: deleting manually means manual intervention (i.e. unplugging the SD card, putting into my PC, and running a script to delete posts requested to be deleted), not going through all posts by hand The only reason I'm doing this is, because I'm not sure, that fully automated deletion can be implemented given the constraints I'm working with. I don't intend for this instance to be malicious and I'll go out of my way to make sure every single deletion request will be honored and that as soon as a deletion request is received the post is inaccessible before its final deletion by manual intervention. When I say my project is not passive, I mean that its purpose is not to record all fediverse activity. It'll record as little as necessary to build a timeline and only make this available to authenticated users. It will also no record any non-public posts to begin with.

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JCM @jcm@wafrn.jcm.re · Aug 03, 2026

Replying to @laru@pleroma.laru.dsrv.x7q.eu

@laru@pleroma.laru.dsrv.x7q.eu @mldkyt@soc.mldkyt.com It's neither passive nor a scraper. Probably quite the opposite of a scraper, since it will have very limited storage for remote posts to begin with and will overwrite old posts as new posts arrive. As I said, I will honor all post deletes manually. User deletes won't even matter, because I don't plan on storing remote users to begin with.

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JCM @jcm@wafrn.jcm.re · Aug 03, 2026

Replying to @laru@pleroma.laru.dsrv.x7q.eu

@laru@pleroma.laru.dsrv.x7q.eu @mldkyt@soc.mldkyt.com The main problem is that building an index is hard. I basically need to build a hash map, which is quite annoying within the project. Therefore I'd rather perform deletes manually at the beginning and then later see if I have enough headroom to even fit the hash map logic 😅

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JCM @jcm@wafrn.jcm.re · Aug 03, 2026

Replying to @laru@pleroma.laru.dsrv.x7q.eu

@laru@pleroma.laru.dsrv.x7q.eu @mldkyt@soc.mldkyt.com Yeah, my bad. I meant that the URL (or IRI) is the ID. And there's no guarantee that the URL itself contains any UUID or numerical ID. From my understanding a post ID of https://abc.xyz/post/lol/rofl would be valid.

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JCM @jcm@wafrn.jcm.re · Aug 03, 2026

Replying to @laru@pleroma.laru.dsrv.x7q.eu

@laru@pleroma.laru.dsrv.x7q.eu @mldkyt@soc.mldkyt.com Wow, some of those block reasons are absolutely wild… Some instances even block entire TLDs, WTF

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JCM @jcm@wafrn.jcm.re · Aug 03, 2026

Replying to @laru@pleroma.laru.dsrv.x7q.eu

@laru@pleroma.laru.dsrv.x7q.eu @mldkyt@soc.mldkyt.com Ooooh, what is this website? I wanna know if anyone blocks one of my instances!

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JCM @jcm@wafrn.jcm.re · Jul 27, 2026

Replying to @LunaDragofelis@void.lgbt

re: hot take Hover or focus to reveal Sensitive

@LunaDragofelis@void.lgbt @eloy@hsnl.social Wouldn't the abolishment of copyright also mean the abolishment of free software? I believe that without free software licenses forcing companies to disclose modifications they made to free software and allowing users to modify the software, most software products would be even more closed than they already are.

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JCM @jcm@wafrn.jcm.re · Jul 24, 2026

Replying to @mldkyt@soc.mldkyt.com

@mldkyt@soc.mldkyt.com 400 Bad followers~

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JCM @jcm@wafrn.jcm.re · Jul 24, 2026

Replying to @jcm@wafrn.jcm.re

I really wanna love Wayland (I am even working on my own private cursed Wayland compositor), but it always sucks when something that flawlessly worked on X11 for years completely breaks on Wayland… Yes, I could and should probably figure out what is happening, find the bug eventually and then fix it, but selecting X11 in my login manager is usually easier :/

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JCM @jcm@wafrn.jcm.re · Jul 24, 2026

Krita 5.3.2.1 is still not working well with touchscreen and stylus with GNOME 46 on Wayland :( Whenever I try to move a layer by drag-and-drop, Krita completely stops accepting any pointer inputs. Not even restarting the program helps… I need to completely relog. #krita #linux #wayland #gnome

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JCM @jcm@wafrn.jcm.re · Jul 17, 2026

Replying to @mxinden@mastodon.social

@mxinden@mastodon.social Oh my, that's very tempting~

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JCM @jcm@wafrn.jcm.re · Jun 28, 2026

Replying to @alice@lgbtqia.space

unserious/joking response to a serious post Hover or focus to reveal Sensitive

@alice@lgbtqia.space "#FuckBots" pat pat pat poor @icepi-zero-bot, I'm sure you're not meant by this, you're a good one #FuckBots

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JCM @jcm@wafrn.jcm.re · Jun 24, 2026

Authorized fetch is weird…

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JCM @jcm@wafrn.jcm.re · May 18, 2026

Replying to @mkljczk@pl.fediverse.pl

@mkljczk@pl.fediverse.pl While I am pretty sure this was not addressed at me at all, it (finally) convinced me to get rid of Anubis :D So, thank you!

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JCM @jcm@wafrn.jcm.re · May 17, 2026

Replying to @cyndi@wafrn.jcm.re

@Cyndi@wafrn.jcm.re Yep yep, hihi~

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JCM @jcm@wafrn.jcm.re · May 04, 2026

Replying to @liaizon@social.wake.st

@liaizon@social.wake.st That's so cool! :D I wish I could have watched it.

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JCM @jcm@wafrn.jcm.re · May 04, 2026

Replying to @LAS@floss.social

@LAS@floss.social In Berlin? :O For free? :O OMG, this is amazing! :waffy_heart: :waffy_party:

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JCM @jcm@wafrn.jcm.re · May 03, 2026

One of the major downsides of vibecoding is that once the code has been written by the AI it is deterministically right or wrong and also cannot be improved (e.g. by switching to a new frontier model) without manually prompting an AI to rewrite it.

Therefore, I have decided to address these issues by developing a new and revolutionary file system: llmfs!

Simply point it to an API, mount it somewhere, and start following "everything is a file"! Even your LLM prompts!

With this amazing new, never-before-seen technology, you can simply include prompts into your C(++) code using the well-known #include keyword:

#include 
#include 
#include 

#include "llm/openai/gpt-oss-20b/prompt/Write a C function called 'void replace(char* text, const char* needle, const char* replacement)' \
that replaces all occurences of needle with replacement. Only include the function and no markdown or explanation."

int main() {
    const char* str = "Hello World!";
    char* s = strdup(str);
    replace(s, "Hello", "Goodbye");
    printf("%s\n", s);
    return 0;
}

Will your code compile? Maybe.
Will your code work? Who knows!
Will your code have the same behavior every time you compile it? Abso-fucking-lutely not!
Will your code burn through tons and tons of tokens? Abso-fucking-lutely yes, so you can finally hit those CEO-mandated token goals.
Can you see your code? No.
Does the compiler show your code if there are warnings or errors? No, it generates an entirely new version for diagnosis!
Is this real? Yes, it exists and runs on my machine!
Does it actually work? Sometimes!

#AI #LLM #FUSE3 #cursed #I-am-so-sorry-for-creating-this #include #include #include #include #include

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JCM @jcm@wafrn.jcm.re · May 01, 2026

Replying to @jcm@wafrn.jcm.re

@alina@girldick.gay Reverse engineering a protocol or a software is legit much more engaging to me than simply reading the documentation (I never even read Wafrn's protocol docs when making Wafbuntu, all I did was watching requests and reading the source code). It always feels a bit like solving some kind of mystery and is so satisfying once I make things work. Also, docs might lie, packets and code won't. :P

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JCM @jcm@wafrn.jcm.re · May 01, 2026

Replying to @alina@girldick.gay

@alina@girldick.gay It's more fun like this anyway! :D

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JCM @jcm@wafrn.jcm.re · Apr 30, 2026

Replying to @tragivictoria@mastodon.catgirl.cloud

@vwbusguy@mastodon.online @bookwar@floss.social @tragivictoria@mastodon.catgirl.cloud Only if: upstream distributes itself for all relevant architectures (especially RISC-V tends to be problematic and the Ubuntu packages are saving my ass often) upstream backports security fixes, so users don't have to do breaking updates upstream provides timely updates when there is a security issue in any library the package includes I usually prefer upstream provided Snap, AppImage, or Flatpak packages myself too, but I don't think it's viable for all types of software, so some form of distributing will always happen.

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JCM @jcm@wafrn.jcm.re · Apr 30, 2026

Replying to @tragivictoria@mastodon.catgirl.cloud

@vwbusguy@mastodon.online @bookwar@floss.social @tragivictoria@mastodon.catgirl.cloud Only packages that aren't controlled by their own maintainers would be considered that. And imo rightfully so. If your Flatpak is maintained by an external person it's more or less equivalent to using the same software but packaged by a traditional Linux distro.

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JCM @jcm@wafrn.jcm.re · Apr 30, 2026

Replying to @tragivictoria@mastodon.catgirl.cloud

@vwbusguy@mastodon.online @bookwar@floss.social @tragivictoria@mastodon.catgirl.cloud I disagree with this definition tbh. A distribution is anything that distributes different pieces of upstream software without being controlled by upstream. You can break upstream software even if no package manager is involved. Think about it from upstream's point of view: If someone packages my software, why would I care if it is distributed to people with a package manager or in a bundle? Someone is still packaging my software and potentially breaking it or making changes to it that I never intended.

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JCM @jcm@wafrn.jcm.re · Apr 30, 2026

Replying to @tragivictoria@mastodon.catgirl.cloud

@vwbusguy@mastodon.online @bookwar@floss.social @tragivictoria@mastodon.catgirl.cloud They might not be traditional distros from the DE's point of view, but they are/rely on traditional distros from the kernel's, systemd's, libc's, bash's, mesa's, etc point of view.

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JCM @jcm@wafrn.jcm.re · Apr 30, 2026

Replying to @tragivictoria@mastodon.catgirl.cloud

@vwbusguy@mastodon.online @bookwar@floss.social @tragivictoria@mastodon.catgirl.cloud Is there any alternative tho? Like, how would a normal person get a running and stable system without some kind of distro?

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JCM @jcm@wafrn.jcm.re · Apr 15, 2026

Replying to @karolherbst@chaos.social

@karolherbst@chaos.social Yesssss, I also love the way Vulkan handles it! Very clear API specifications, extension mechanism, and optional validation layers ftw.

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JCM @jcm@wafrn.jcm.re · Apr 15, 2026

Replying to @jcm@wafrn.jcm.re

@karolherbst@chaos.social I personally prefer well documented APIs that explicitly state required preconditions and behavior that you can rely on (and define what behavior you cannot rely on). If you violate a precondition and it still works, it should be allowed to stop working at any point (even because your CPU temperature increases). If you rely on undefined behavior, your code might break at any point and imo that is okay.

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JCM @jcm@wafrn.jcm.re · Apr 15, 2026

Replying to @karolherbst@chaos.social

@karolherbst@chaos.social XKCD 1172 energy

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JCM @jcm@wafrn.jcm.re · Apr 09, 2026

Replying to @sodiboo@gaysex.cloud

re: wayland, reversed power dynamics, bondage, consensual non-consent, overstepping boundaries due to upstream outage, bratty dom is borderline malware, renderer edging, teasing overstimulated sub, cuckoldry and/or vouyerism, lack of protection around highly privileged and unsafe interfaces, second person is not reader (unless reader is into that) Hover or focus to reveal Sensitive

@sodiboo@gaysex.cloud As someone working on his own small little Wayland compositor I don't know how to feel about this… >/////<

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JCM @jcm@wafrn.jcm.re · Jan 21, 2026

Replying to @0xabad1dea@infosec.exchange

And beware, that even if there is no .vscode/tasks.json file, it still isn't necessarily safe. Depending on what plugins you have installed, VSCode might automatically execute build scripts (e.g. CMakeLists.txt), which might be able to execute arbitrary commands.

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