Rustobol – Compile Rust to COBOL

What it does

rustbol - The Rust → COBOL transpiler "If it compiles, we ship it to 1964." What is rustbol? rustbol is a production-grade transpiler that converts Rust source code into standards-compliant COBOL, targeting IBM z/OS, Unisys ClearPath MCP, and Bull GCOS mainframe environments. Stop choosing between memory safety and 99.999% uptime. With rustbol, you get both — plus the warm comfort of knowing your business logic is expressed in a language that was already mature when your senior engineers were born. // Your modern Rust code fn calculate_interest ( principal : f64 , rate : f64 , years : u32 ) -> f64 { principal * ( 1.0 + rate ) . powi ( years as i32 ) } Becomes: IDENTIFICATION DIVISION .…from github.com

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  Rust-starter, a boilerplate to build Rust CLI applications2021 · github.com · ▲97

  Rust Starter Project. Contribute to rust-starter/rust-starter development by creating an account on GitHub.

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  Cargo-memex – compile rust code into a meme and run it2021 · github.com · ▲61

  compile rust code into memes. Contribute to mattsse/cargo-memex development by creating an account on GitHub.

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  A minimal working Rust / SDL2 / WASM browser game2024 · github.com · ▲82

  "Game" is a stretch, but I put together this repo containing a pure Rust app which uses SDL2 and compiles to WASM (and can be run in a browser). Older resources were a bit out of date and a bit too verbose for my purposes, so here's a minimal working example.

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  Run – a CLI universal code runner I built while learning Rust2025 · github.com · ▲96

  Hi HN — I’m learning Rust and decided to build a universal CLI for running code in many languages. The tool, Run, aims to be a single, minimal dependency utility for: running one-off snippets (from CLI flags), running files, reading and executing piped stdin, and providing language-specific REPLs that you can switch between interactively. I designed it to support both interpreted languages (Python, JS, Ruby, etc.) and compiled languages (Rust, Go, C/C++). It detects languages from flags or file extensions, can compile temporary files for compiled languages, and exposes a unified REPL…

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  Building mobile apps in rust and flutter2022 · github.com · ▲7

  Cross compile rust to any platform (unmaintained). Contribute to rust-mobile/xbuild development by creating an account on GitHub.

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  I'm a teen from Kenya and I built a package manager in Rust for funMar 2026 · github.com · ▲6

  rust-based package manager :). Contribute to v1peridae/vee development by creating an account on GitHub.

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  /dev/null▲483

  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 · 27d 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 · 25d 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▲345

  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 · 20d 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

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  Brila▲1,364

  One-page websites from real Google Maps reviews

  AI · Apr 2026 · brila.ai

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  A game where you build a GPU▲964

  Thought the resources for GPU arch were lacking, so here we are

  Life & fun · Apr 2026 · jaso1024.com

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  I built a tiny LLM to demystify how language models work▲915

  Built a ~9M param LLM from scratch to understand how they actually work. Vanilla transformer, 60K synthetic conversations, ~130 lines of PyTorch. Trains in 5 min on a free Colab T4. The fish thinks the meaning of life is food. Fork it and swap the personality for your own character.

  AI · Apr 2026 · github.com

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  Fathom 3.0▲800

  AI meeting notes: now bot-free, in ChatGPT & Claude + more

  AI · Apr 2026 · fathom.ai

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  Brutalist Concrete Laptop Stand (2024)▲786

  I made a laptop stand out of solid concrete, in the style of brutalist architecture, with themes of urbex and urban decay

  Life & fun · Apr 2026 · sam-burns.com

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  I built a frontpage for personal blogs▲783

  With social media and now AI, its important to keep the indie web alive. There are many people who write frequently. Blogosphere tries to highlight them by fetching the recent posts from personal blogs across many categories. There are two versions: Minimal (HN-inspired, fast, static): https://text.blogosphere.app/ Non-minimal: https://blogosphere.app/ If you don't find your blog (or your favorite ones), please add them. I will review and approve it.

  AI · Apr 2026 · text.blogosphere.app