Top all-time · #6547
kyju.org
Personal blog · kyju.org/blogprogrammingsystems
kyju.org is a personal blog at kyju.org about programming and systems. Since 2024, 12 different Hacker News readers have linked it 12 times, most often “The Edge of Safe Rust”. It is still writing: the last post was on 2026-04-22, and you can follow it by feed.
Too few sampled comments (5) to say how often HN recommends it.?
Why HN links it
HN readers link kyju.org for posts on Piccolo, a stackless Lua interpreter, and on building a garbage collector in Rust. Comments only cite these posts as sources or companions.
Summarised by Claude from a sample of 5 HN comments that link here. Each comment is marked recommending, critical or neutral (citing without judging); how this works.
Most-linked posts?
- The Edge of Safe Rust5 people · 5 mentions · first linked 2026-04-22
- Piccolo – A Stackless Lua Interpreter4 people · 4 mentions · first linked 2024-05-02
- Techniques for safe garbage collection in Rust2 people · 2 mentions · first linked 2024-01-21
What Hacker News says?
I don't know that I'd want the scripting language to be compiled, for reasons that are outside the scope of this reply. So removing that constraint, the coolest thing I've seen in this space recently is kyren's Piccolo: https://kyju.org/blog/piccolo-a-stackless-lua-interpreter/
Comment linking /blog/piccolo-a-stackless-lua-interpreter/
on “Pyrefly vs. Ty: Comparing Python's two new Rust-based type checkers”Submitted Piccolo – A Stackless Lua Interpreter as a story · 269 points
HN discussionCompanion blog post: https://kyju.org/blog/piccolo-a-stackless-lua-interpreter/
Comment linking /blog/piccolo-a-stackless-lua-interpreter/
on “Techniques for safe garbage collection in Rust”Submitted Techniques for safe garbage collection in Rust as a story · 125 points
HN discussionOh that's a great response, much appreciated. I'm glad I asked the question. From what I understand, a disadvantage of this templating capability in C++ is that it makes the language "unpredictable" in terms of static analysis, so that, for example, intellisense in code editors cannot be implemented without having a full C++ compiler. ..But then again, maybe that's true of any language with macros, where the code ca…
Comment linking /blog/piccolo-a-stackless-lua-interpreter/
on “Compilers are too smart”Submitted The Edge of Safe Rust as a story · 4 points
HN discussionthis is possible in rust, albeit with a lot of shenanigans. See this article where someone made a GC in rust where the external references are bound to a specific GC via a unique lifetime: https://kyju.org/blog/tokioconf-2026/
Comment linking /blog/tokioconf-2026/
on “Unsigned Sizes: A Five Year Mistake”Submitted Piccolo – A Stackless Lua Interpreter Written in Mostly Safe Rust as a story · 4 points
HN discussionI recently saw a submission here that does that, by essentially implementing GC in Rust. It is not beginner material though. https://kyju.org/blog/tokioconf-2026/ Edit: also the simplest way how to do cyclic structures is to heap-allocate via Box and leak memory. Box::leak This is also mentioned in the linked article.
Comment linking /blog/tokioconf-2026/
on “Rust Memory Management: Ownership vs. Reference Counting”Submitted Techniques for Safe Garbage Collection in Rust as a story · 2 points
HN discussionSubmitted The Edge of Safe Rust as a story · 1 points
HN discussionSubmitted Garbage collection and the edge of safe Rust as a story · 1 points
HN discussion