Dev tools · alternatives · 2026
24 alternatives to Kent Dybvig's Scheme Machine in 400 Lines of C (Heap-Memory Model)
Heap based scheme machine. GitHub Gist: instantly share code, notes, and snippets.
This is a compact Scheme interpreter written in approximately 400 lines of C, implementing a heap-memory model for managing runtime data. It interprets the Scheme programming language, a dialect of Lisp, and is… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes.
- 1LW
2021 · justine.lol · its alternatives →
- 2
Moved to Forgejo! Contribute to krig/LISP development by creating an account on GitHub.
2018 · github.com · its alternatives →
- 3
I've been working on implementing the compile-time approach to memory management described in this thesis (https://www.cl.cam.ac.uk/techreports/UCAM-CL-TR-908.pdf) for some time now - some of the performance results look promising! (Although some less so...) I think it would be great to see this taken further and built into a more complete functional language.
2020 · github.com · its alternatives →
- 4
Long-simmering side project that is finally ready to see the light. HAMTs are a cool persistent data structure and implementing one has been a lot of fun. Beyond the code, there is likely some value in the extensive and largely complete implementation docs; basic benchmarks are linked in the README, too. Kind of aiming to be "the libavl for HAMTs". That is obviously a high and aspirational bar but a distinct possibility if it stirs up a little interest and/or contribution. Anyways, it's time for this to go out, collect feedback and maybe even some use outside of toy projects. Let me…
2023 · github.com · its alternatives →
- 5
Heap by Contentsquare is the only digital insights platform that shows everything users do on your site, revealing the "unknown unknowns" that stay invisible with other tools.
2013 · heapanalytics.com · its alternatives →
- 6
A functional programming language with static memory management - vekatze/neut
2020 · github.com · its alternatives →
- 7IW
The book page links to a blog post that explains how I got about it (and has a link to sample content), but the TL&DR is that I could not find a lot of books that were on "our" history _and_ were larded with technical details. So I set about writing one, and some five years later I'm happy to share the result. I think it's one of the few "computer history" books that has tons of code, but correct me if I'm wrong (I wrote this both to tell a story and to learn :-)). My favorite languages are Smalltalk and Lisp, but as an Emacs user, I've been using the latter for much longer and for my…
Feb 2026 · berksoft.ca · its alternatives →
- 8
"interesting" VM in C. Let's see how this goes. Contribute to tekknolagi/carp development by creating an account on GitHub.
2014 · github.com · its alternatives →
- 9
I wrote a little LD_PRELOAD library that makes it easy to inspect and interact with a running program's glibc heap. It's fun to pause processes, free a bunch of their allocations, then resume them. Most of the time, the processes continue as though nothing happened, but sometimes they do interesting things :)
2025 · github.com · its alternatives →
- 10
Built this for my LLM workflows - needed searchable, persistent memory that wouldn't blow up storage costs. I also wanted to use it locally for my research. It's a content-addressed storage system with block-level deduplication (saves 30-40% on typical codebases). I have integrated the CLI tool into most of my workflows in Zed, Claude Code, and Cursor, and I provide the prompt I'm currently using in the repo. The project is in C++ and the build system is rough around the edges but is tested on macOS and Ubuntu 24.04.
2025 · github.com · its alternatives →
- 11
A minimal stack-based VM. Contribute to codr7/liblg development by creating an account on GitHub.
2020 · github.com · its alternatives →
- 12
A complete compiler for a simple language (in less than 150 LoC) - 00_readme.md
2022 · gist.github.com · its alternatives →
- 13
Simple, zero-dependency garbage collection for C. Contribute to mkirchner/gc development by creating an account on GitHub.
2019 · github.com · its alternatives →
- 14
Smart pointers for the (GNU) C programming language - Snaipe/libcsptr
2015 · github.com · its alternatives →
- 15GI
Hi all! I'm going into my freshman year, and figured that the best way to prepare for the intro to programming Racket course would be to implement my own garbage-collected, dynamically typed, functional programming language in C ;) Anyways... here's the repo: https://github.com/liam-ilan/crumb I started learning C over the summer, so I still have a whole lot to learn... Any feedback would be greatly appreciated! :D
2023 · its alternatives →
- 16
Explore large language models in 512MB of RAM. Contribute to jncraton/languagemodels development by creating an account on GitHub.
2023 · github.com · its alternatives →
- 17
Build your own high performance LLM inference engine in C++ and CUDA - a smaller version of vLLM - jmaczan/tiny-vllm
May 2026 · github.com · its alternatives →
- 18
An implementation of a dynamic programming language in Rust. Includes: Parser/Compiler, REPL, Virtual Machine, Bytecode Disassembler This started out as a learning project to teach myself Rust. It has grown into a decently substantial piece of software and I've learned quite a bit in the process! Some neat things: + A garbage collector that can store dynamically sized types without any double-indirection (i.e. I have my own Box implementation with manual alloc/dealloc) + The smart pointer used to reference GCed data is a thin pointer. The ptr metadata needed for DSTs is stored in…
2022 · github.com · its alternatives →
- 19
Scheme-langserver digest incomplete Scheme code to serve real-world programming requirements, including goto-definition, auto-completion, type inference and such many LSP-defined language feature supports. And this project is based here(https://github.com/ufo5260987423/scheme-langserver). I built it because I was tired of Scheme/Lisp's raggy development environment, especially of the lack of IDE-like highly customized programing experience. Though DrRacket and many REPL-based counterparts have don't much, following general cases aren't reach same-level as in other…
Feb 2026 · github.com · its alternatives →
- 20
Nibble▲102An attempt at a single pass LLVM frontend in ~3000 lines of C without external dependencies, malloc, or an AST. Included are some graphical examples. The IR isn't perfect, and the README touches on one particular downfall
May 2026 · github.com · its alternatives →
- 21
An interactive Ruby Object Graph Visualization. Contribute to mattbaker/ruby-heap-viz development by creating an account on GitHub.
2014 · github.com · its alternatives →
- 22
2017 · github.com · its alternatives →
- 23
GitHub Gist: instantly share code, notes, and snippets.
2011 · gist.github.com · its alternatives →
- 24FS
Hi HN! I've been working on the fuse programming language, it's a statically typed purely functional language with higher-kinder types and ad-hoc polymorphism. It compiles to the GRIN whole-program optimizer, producing LLVM-generated native code. Fuse supports ADTs, Generics, Type Methods, Traits, Pattern matching etc. all in a functional style with no mutations. I’ve been developing the language for 5 years, with code written in Scala. I’ve started coding the language from the base of System F that was implemented as part of the book: Types and Programming Languages (tapl). And then…
Aug 2026 · fuselang.org · its alternatives →
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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →