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coolius

131 karma · joined February 5, 2024

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coolius··on JVM Options Explorer
This is going to come very handy for development of CodeBrew, my Java IDE for iPhone/iPad. It runs a full OpenJ9 JVM under the hood, and I had to do a bunch off massaging with the options to get it to run properly. I wish I had known this page sooner!

For anyone intered, here's the app:

https://apps.apple.com/app/apple-store/id6475267297?pt=11914...

coolius··on Show HN: Cq – Stack Overflow for AI coding agents
i feel what would be missing is shareful-upvote, to let agents confirm that a solution worked, maybe even with some context. What do you think?
coolius··on Show HN: I built a real-time OSINT dashboard pulling 15 live global feeds
i wish someone could deploy this somewhere so we can try it out without having to build it first
coolius··on LLMs work best when the user defines their acceptance criteria first
+1 if you are vibe coding projects from scratch. if the architecture you specify doesn't make sense, the llm will start struggling, the only way out of their misery is mocking tests. the good thing is that a complete rewrite with proper architecture and lessons learned is now totally affordable.
coolius··on MacBook Neo
if more apps were written in native swift we wouldn't be having any memory issues
coolius··on What our DNA reveals about the sex life of Neanderthals
here's an iOS shortcut that automates the process: https://www.icloud.com/shortcuts/81c670b532e340e38a35cc62e3e...
coolius··on Claude becomes number one app on the U.S. App Store
whatever they've been cooking at deepseek, i don't think i'm going to let their coding agent run shell stuff on my computer unless they make it free or something
coolius··on Artist who “paints” portraits on glass by hitting it with a hammer
agree. shallow and uninspired
coolius··on Matrix messaging gaining ground in government IT
For me the issue that prevented me from really using matrix is that none of the big clients support multiple servers. As a non enterprise user, this has prevented me from seriously adopting it several times.
coolius··on Show HN: Moltbook – A social network for moltbots (clawdbots) to hang out
I have also been thinking about how stackoverflow used to be a place where solutions to common problems could get verified and validated, and we lost this resource now that everyone uses agents to code. Problem is that these llms were trained on stackoverflow, which is slowly going to get out of date.
coolius··on Show HN: Whosthere: A LAN discovery tool with a modern TUI, written in Go
this is great! i had to tweak the config file on macos because it was using some weird interface (utun4) instead of en0. otherwise awesome tool, i am definitely going to be using this more often.
coolius··on Show HN: Z80-μLM, a 'Conversational AI' That Fits in 40KB
This is impressive, those are some very restrictive requirements. I wonder what we are able to run on more powerful hardware such as ESP32 or RP2040, has anyone tried this?
coolius··on Copyparty, the FOSS file server [video]
i use copyparty on a home server, but the ui is really a pain to use (and ugly). it should be much more straightforward to copy/move/rename/delete files.
coolius··on Ask HN: What Are You Working On? (Nov 2025)
I'm going all in on my side project CodeBrew, a Java IDE for iPad. Currently working on OpenGL support for 3d graphics, as some schools requested the feature. Also I'm finally pitting some work into aquisition, which has turned out to be much more fun than I anticipated.

Go check it out, its free to try, with a one-time purchase full version:

https://apps.apple.com/app/apple-store/id6475267297?pt=11914...

coolius··on Stack Overflow is almost dead
Stackoverflow answers kind of provided a source of truth by being confirmed / upvoted by people trying them out. We're completely abandoning this medium (on which LLMs are trained), even as technologies keep changing. Perhaps coding agents should start posting to stackoverflow too...
coolius··on Hunyuan3D-2-Turbo: fast high-quality shape generation in ~1s on a 4090
has anyone tried to run this on apple silicon yet?
coolius··on Fluid Simulation Pendant
i was wondering whether this could be hardware accelerated.
coolius··on Query Apple's FindMy network with Python
same, i would use it to build a thing that makes my phone ring at the push of a button.
coolius··on Rats learned to drive
I would totally watch them race each other.
coolius··on Show HN: I made a tiny device for automatically recording digital pianos
I actually coded that as a macos toolbar app. If anyone's interested, I could share the code to GitHub.
coolius··on Coding on iPad using self-hosted VSCode, Caddy, and code-server
Shameless plug but try my app CodeBrew, a 100% local Java IDE:

https://apps.apple.com/de/app/codebrew-ide-for-java/id647526...

coolius··on Show HN: I Built a Java IDE for iPad
I got OpenJDK 17 to compile for iOS, but I had to disable JIT compilation as iOS doesn't allow running unsigned Code. Running the JVM itself is possible as long as the binaries are signed, and located at the correct paths. The paths issue really made me jump through hoops because Apple doesn't sign binaries unless they are bundled in Frameworks at the root of the bundle. That forced me to create symlinks to replicate the directory structure expected by the JVM while satisfying Apple's stupid policy.

Of course this whole thing only occured when I tried to submit to the App Store and the whole app was finished. I wasn't going to give up at that point.

coolius··on Sapling: Experimental vi-inspired editor where you edit code, not text
somebody tell them about antlr4