Hacker News: wedesoft

New comment by wedesoft in "Proximal Policy Optimization with Clojure and PyTorch"

wedesoft — Wed, 22 Apr 2026 21:58:34 +0000

A Clojure port of XinJingHao’s PPO implementation using libpython-clj2, PyTorch, and Quil. PPO is a reinforcement learning method which has become popular because it addresses the problem of stability. The PPO implementation is tested using the inverted pendulum problem.

Proximal Policy Optimization with Clojure and PyTorch

wedesoft — Wed, 22 Apr 2026 21:58:33 +0000

Article URL: https://clojurecivitas.org/ppo/main.html

Comments URL: https://news.ycombinator.com/item?id=47869820

Points: 2

# Comments: 1

New comment by wedesoft in "The cult of vibe coding is dogfooding run amok"

wedesoft — Tue, 07 Apr 2026 22:18:31 +0000

Bad code is usually more costly once you are beyond 100 lines of code.

New comment by wedesoft in "I replaced Windows with Linux and everything's going great"

wedesoft — Sun, 11 Jan 2026 16:14:50 +0000

My Windows gaming graphics performance dropped by 40% after some update. I already was using Linux for everything else except gaming for many years. So I tried out Steam on Linux and I was quite amazed how many games run on Linux via Proton. Just check out protondb.com for compatibility reports.

New comment by wedesoft in "The future of software development is software developers"

wedesoft — Wed, 31 Dec 2025 19:18:28 +0000

I did a bit of scripting trying to automate the TDD cycle given a task description. The problem is, that the LLM tends to jump forward and submit a full implementation instead of a minimal change. I guess the problem is, that LLMs are trained on complete solutions instead of minimal steps.

New comment by wedesoft in "Developing a Space Flight Simulator in Clojure"

wedesoft — Mon, 08 Sep 2025 22:25:53 +0000

Yes, the main function is the worst part of the code. Whenever I discover a pattern, I refactor it and put it in a module.

New comment by wedesoft in "Developing a Space Flight Simulator in Clojure"

wedesoft — Mon, 08 Sep 2025 20:14:07 +0000

Yes, I forgot. However Clojure multi methods are more generic in that the function computing the dispatch value can also be defined.

New comment by wedesoft in "Developing a Space Flight Simulator in Clojure"

wedesoft — Mon, 08 Sep 2025 19:39:57 +0000

Good point. I definitely need to keep an eye on garbage collector pauses. I am using the new ZGC which supposedly has very short garbage pauses.

New comment by wedesoft in "Developing a Space Flight Simulator in Clojure"

wedesoft — Mon, 08 Sep 2025 19:19:40 +0000

In the past I have done some rigid body physics in GNU Guile (see https://www.youtube.com/watch?v=zBq3kW2jVxs for example). Of course if you need to simulate many objects, you will hit performance problems sooner if you don't use C/C++/Rust. Also the developer of Jolt has solved quite difficult problems, so I was quite happy to use it instead of rolling my own.

New comment by wedesoft in "Developing a Space Flight Simulator in Clojure"

wedesoft — Mon, 08 Sep 2025 19:09:29 +0000

I am aware of Neanderthal. I think it is more suitable for larger tensors and matrices. Will have to check out what ham-fisted is about.

New comment by wedesoft in "Developing a Space Flight Simulator in Clojure"

wedesoft — Mon, 08 Sep 2025 19:02:57 +0000

I use a few macros for creating contexts (i.e. with-texture, with-stencil, with-scissors, with-tar). Also I have macros for rendering (onscreen-render, offscreen-render). However I try not to overuse macros.

New comment by wedesoft in "Developing a Space Flight Simulator in Clojure"

wedesoft — Mon, 08 Sep 2025 18:27:15 +0000

That's a lot of features. Moon is on my TODO list though and eclipses would be nice as well.

New comment by wedesoft in "Developing a Space Flight Simulator in Clojure"

wedesoft — Mon, 08 Sep 2025 18:19:52 +0000

Thanks.

New comment by wedesoft in "Developing a Space Flight Simulator in Clojure"

wedesoft — Mon, 08 Sep 2025 18:17:29 +0000

Thanks. Yes, Malli is really nice. Unfortunately it doesn't let you decorate type-tagged methods.

New comment by wedesoft in "Developing a Space Flight Simulator in Clojure"

wedesoft — Mon, 08 Sep 2025 18:16:52 +0000

Yes, space station docking is on my todo list.

New comment by wedesoft in "Unexpected productivity boost of Rust"

wedesoft — Thu, 28 Aug 2025 18:17:56 +0000

Or you could use Clojure with the immutable data structures where you don't need to lock a mutex when accessing a data structure concurrently.

New comment by wedesoft in "Ultrathin business card runs a fluid simulation"

wedesoft — Sat, 09 Aug 2025 13:15:10 +0000

You can use two different fluids instead of water and air.

New comment by wedesoft in "I don't like NumPy"

wedesoft — Fri, 16 May 2025 18:38:14 +0000

Implementing array operations basically requires macros and JIT compilation. I have implemented JIT compilation of tensor operations in Scheme using LLVM. Maybe I should redo it in Clojure, but I think, most programmers don't care enough, to leave the Python ecosystem. https://wedesoft.github.io/aiscm/operation.html

The SOLID Principles illustrated using Clojure code examples [video]

wedesoft — Wed, 22 Jan 2025 09:19:53 +0000

Article URL: https://www.youtube.com/watch?v=_BvBPN86rQc

Comments URL: https://news.ycombinator.com/item?id=42790785

Points: 2

# Comments: 0

Mercedes allowed to drive autonomously up to 95 km/h (Level 3)

wedesoft — Tue, 17 Dec 2024 19:48:42 +0000

Article URL: https://www.heise.de/en/news/Autonomous-driving-Mercedes-is-allowed-to-drive-up-to-95-km-h-Level-3-10209142.html

Comments URL: https://news.ycombinator.com/item?id=42444582

Points: 6

# Comments: 0