Rim

What it does

A new argument_parser in C

a C library to easily create CLI's. Contribute to japrozs/rim development by creating an account on GitHub.

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  A hash array-mapped trie implementation in C2023 · github.com · ▲171

  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…

• GI
  Going into freshman year, figured I should build an interpreter2023 · ▲138

  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

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  Maybe Haskell2015 · books.thoughtbot.com · ▲60

  See what it’s like to program in a language without null.

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  Salt – a systems language with Z3 theorem proving in the compilerJul 2026 · salt-lang.dev · ▲44

  Hey HN, I wanted to share the new online playground for Salt (https://salt-lang.dev/playground/), a sovereign systems language designed for high-performance, distributed workloads where paying an "abstraction tax" is no longer acceptable. We started building Salt to bridge the gap between the raw power of manual pointer arithmetic and the safety guarantees of modern high-level languages. The architecture relies on an MLIR-based backbone and a Z3-powered "formal shadow," and the design is rooted in three main pillars: Fast Enough: The target is to stay within 20% of C's…

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  Onboard-CLI, a LLM powered and AST-based tool to visualize codebaseJul 2026 · github.com · ▲24

  Onboard-CLI—a blazing-fast developer tool I built in Go. It uses AST parsing (Tree-sitter) to map out codebase architecture and automatically blocks spaghetti code and bad dependencies locally before you even commit. I heavily optimized the concurrency, so it can parse 50k+ files in under 10 seconds.

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  Essentials-C – A minimal C library for string and array manipulation2025 · github.com · ▲10

  Hey everyone! I just launched Essentials-C, a minimal C library with handy functions for string and array manipulation – built from scratch with simplicity and learning in mind. Highlights: - `length`, `reverse`, `substring`, `trim`, `replaceChar`, etc. - `bubbleSort`, `includes`, `startsWith`, `endsWith`, and more - Pure C, no external dependencies - Clean, readable code – great for beginners and power users I’m building it to be the “Essentials” of every C project — feel free to contribute or suggest features! GitHub: https://github.com/oileo/Essentials-C Feedback is…

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  /dev/null▲486

  a social network for devs

  Dev tools · 3d ago · dev-null.sh

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  Whiteboard (YC W26) – an open-source IDE for thoughtful software design▲423

  open-source IDE for thoughtful software design. Contribute to devdotfast/whiteboard development by creating an account on GitHub.

  Dev tools · 28d ago · github.com

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  Reladraw – A diagram language where you decide where to place things▲411

  Contribute to reladraw/reladraw development by creating an account on GitHub.

  Dev tools · 26d ago · github.com

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  OpenBot▲362

  Grok Bot alternative: free, local, open-source, multiplayer

  Dev tools · 23d ago · openbot.run

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  Talanoa▲346

  Hi HN, I’m a fullstack developer, and honestly, I’ve lost count of how many side projects I’ve worked on over the years. But one idea kept coming back to me: a different kind of email client. It first came to me in 2014: “What if we could handle emails more like conversations?” Every year, I’d revisit this concept in my “Build Notes.” Ten years later, no one had built exactly what I had in mind — so I finally decided to do it myself. That’s how Talanoa was born. I wanted something focused on people, not timelines. I was tired of marking messages as unread just to remember to reply later, or…

  Dev tools · 21d ago · talanoa.email

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  CoreSpeed▲332

  One MCP for everything your agents need: apps, memory, tools

  Dev tools · 28d ago · corespeed.io

• AF
  A friend and I spent 6 years making a simulation game, finally released▲1,157

  I've seen some interests in (simulation) video games here on HN so I thought I'd share a short version of our story. More than 6 years ago, me and my friend from university were playing around with an idea of making a game we always wanted to play. We worked on it on weekends but the progress was quite slow, especially due to so many dead ends and wasted effort. Eventually however, we solidified our direction and decided to take the risk to resign from our well paid SWE jobs and work on it full time. It took more than a year but yesterday we have finally released it on Steam:…

  Life & fun · 2022

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  A central bank simulator game with a realistic economic model▲815

  Life & fun · 2022 · benoitessiambre.com

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  I stripped DALL·E Mini to its bare essentials and converted it to Torch▲663

  min(DALL·E) is a fast, minimal port of DALL·E Mini to PyTorch - kuprel/min-dalle

  Life & fun · 2022 · github.com

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  Untitled UI Icons▲634

  1,100+ free Figma icons for modern UI design.

  Dev tools · 2022 · untitledui.com

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  MakerBox▲621

  600 tools with generous free plans for indie entrepreneurs

  Dev tools · 2022 · makerbox.club

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  Typedream CMS▲593

  Display your Notion data beautifully on your site, no-code

  Dev tools · 2022 · typedream.com