Hacker News: hailruda

New comment by hailruda in "Show HN: Edsger – A handwritten Clojure REPL for the reMarkable 2"

hailruda — Wed, 03 Jun 2026 10:40:56 +0000

I find getting stuff up on the rM2 screen a hassle.

The challenge comes from the way the e-paper works. To turn a pixel from white to black (or vice versa) it needs multiple actual frames. The pixel data must also be packed in a specific format. Instructions for how many frames a single operation requires are coded in a wbf[0] file, which comes included with the OEM firmware.

The most commonly used approach is hooking into xochitl, since it handles all of the user facing stuff like the notebooks but also the actual drawing. This is somewhat brittle and tends to break with software updates, because all of the actual function addresses have to be updated as well.

I was excited to find waved[1], a C++ library that allowed to drive the display directly using a sane API. Although it's not been updated for quite a while it still works and you can compile and run it yourself.

Since I was interested in driving the display myself, I tried to rewriting waved in Zig. It works - I can now get pixels up on the screen. Unfortunately the code is a mess and its only redeeming quality (stemming from being written in Zig) is that I can cross compile a statically linked binary that 'just werks' using just the Zig toolchain as the only dependency. For debugging purposes, I also implemented a SDL emulator for the display. [2]

While writing this, I stumbled upon a recent Rust implementation of the same ideas. Nice. [3]

Since the xochitl display implementation is the most optimized, that's probably the reason why it's being used most commonly*, even though it might be 'ugly'.

* Citation needed

[0] https://gitlab.com/zephray/glider#understanding-waveform

[1] https://github.com/matteodelabre/waved

[2] https://github.com/jakubvf/dazed

[3] https://github.com/yobert/swtcon

New comment by hailruda in "I'm Tired of Talking to AI"

hailruda — Wed, 27 May 2026 17:41:45 +0000

I’m curious, what was their reaction? :)

New comment by hailruda in "Ratty – A terminal emulator with inline 3D graphics"

hailruda — Mon, 11 May 2026 11:15:09 +0000

User name doesn’t checkout.

Any technical reason for such a strong opinion?

New comment by hailruda in "Build real-time knowledge graph for documents with LLM"

hailruda — Wed, 14 May 2025 18:52:37 +0000

I’d appreciate a writeup! I’d like to implement this myself, maybe add reminders.

New comment by hailruda in "Show HN: NoteUX – Fast and minimalist note-taking app"

hailruda — Mon, 31 Mar 2025 20:01:06 +0000

I get your point and I agree.

New comment by hailruda in "Show HN: NoteUX – Fast and minimalist note-taking app"

hailruda — Mon, 31 Mar 2025 11:58:46 +0000

>without the hassle of creating new notes or organizing folders

Have you missed this part?

New comment by hailruda in "Show HN: I made a app that uses NFC as a physical switch to block distractions"

hailruda — Tue, 21 Jan 2025 18:56:40 +0000

NFC tags can be scanned using a phone. An app on the phone can then detect the action and act accordingly. The phone can differentiate between different tags.

I use an NFC tag to lock the house using Home Assistant.

New comment by hailruda in "Show HN: connet – A P2P reverse proxy with NAT traversal"

hailruda — Thu, 02 Jan 2025 19:20:49 +0000

So if I understand correctly, this should be comparable to what Tailscale is doing?

New comment by hailruda in "Mouseless – fast mouse control with the keyboard"

hailruda — Thu, 12 Dec 2024 17:09:03 +0000

After watching the video, I think this is an exciting experiment to see if there exist better ways to control PCs without a mouse and just a keyboard. The standard of today being keyboard shortcuts.

New comment by hailruda in "Tsoding livestreams trying out C3 (programming language) [video]"

hailruda — Mon, 29 Jul 2024 11:16:09 +0000

How does it compare to Zig? Does it inherit C macros?

New comment by hailruda in "Ladybird browser spreads its wings"

hailruda — Fri, 21 Jun 2024 12:52:22 +0000

Chosing Discord was a deliberate choice. I remember when Serenity was using IRC as the only communication channel and immediately after setting up a new Discord server the community gravitated towards it. Infact, the number of community members sky rocketed.

The fact is, Discord as a platform is more accessible compared to IRC.

New comment by hailruda in "Metabolism of autism reveals developmental origins"

hailruda — Sat, 11 May 2024 20:07:30 +0000

I can relate to this. Could you point me to any resources about keto diets?

New comment by hailruda in ".NET 8 Standalone 50% Smaller On Linux"

hailruda — Sat, 11 Nov 2023 12:22:45 +0000

Most of Visual Studio is written in C# since VS2010. [0]

[0]: https://en.wikipedia.org/wiki/Visual_Studio#2010

New comment by hailruda in "A robot in South Korea mistook a man for a box of vegetables and killed him"

hailruda — Thu, 09 Nov 2023 20:02:18 +0000

This reminds me of Five Nights at Freddy's animatronics mistaking a human for an endoskeleton and murdering the human by shoving them into a suit [0]. Didn't think this could happen for real.

[0] https://en.wikipedia.org/wiki/Five_Nights_at_Freddy%27s#Game...

New comment by hailruda in "Was Rust Worth It?"

hailruda — Thu, 26 Oct 2023 07:23:57 +0000

Seamlessly as in @cInclude("raylib.h")

New comment by hailruda in "TabFS – a browser extension that mounts the browser tabs as a filesystem"

hailruda — Sat, 18 Feb 2023 19:31:27 +0000

Exactly, why isn't more software made to be accessible from a filesystem?