Bolt: A research language with finer-grained concurrency than Rust

In plain words

Bolt is a research programming language designed for developers who need finer-grained concurrency control than Rust provides. It offers advanced concurrency primitives to handle complex parallel processing tasks. The language is available on GitHub and targets software engineers working on performance-critical systems who require more granular management of concurrent operations at a lower level than existing alternatives.

written from the facts on this page · September 2026

• 
  Bolt – A super-fast, statically-typed scripting language written in C2025 · github.com · ▲261

  I've built many interpreters over the years, and Bolt represents my attempt at building the scripting language I always wanted. This is the first public release, 0.1.0! I've felt like most embedded languages have been moving towards safety and typing over years, with things like Python type hints, the explosive popularity of typescript, and even typing in Luau, which powers one of the largest scripted evironments in the world. Bolt attempts to harness this directly in the lagnauge rather than as a preprocessing step, and reap benefits in terms of both safety and performance. I intend to be…

• 
  bolt.new2024 · bolt.new · ▲1,230

  Build and scale high-performing websites & apps using your words. Join millions and start building today.

• 
  Boltic2022 · boltic.io · ▲385

  Modern enterprise grade data platform

• 
  Sierra, a DSL for building Java Swing applications2023 · github.com · ▲100

  Yes, I know hardly anyone uses Swing anymore. :-) I basically just did it for fun and thought I would share.

• BA
  Bolt – A unified Python interface for local and distributed nd-arrays2015 · bolt-project.org · ▲13
• 
  I'm making a dynamic language in Rust2022 · github.com · ▲184

  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…

• 
  /dev/null▲468

  a social network for devs

  Dev tools · 2d ago · dev-null.sh

• 
  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

• 
  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

• 
  OpenBot▲362

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

  Dev tools · 22d ago · openbot.run

• 
  Talanoa▲340

  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

• 
  CoreSpeed▲332

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

  Dev tools · 27d ago · corespeed.io

• 
  Blush▲1,462

  Illustrations for everyone

  Dev tools · 2020 · blush.design

• 
  SHA-256 Animation▲1,053

  Animation of the SHA-256 hash function in your terminal. - in3rsha/sha256-animation

  Dev tools · 2020 · github.com

• 
  This Word Does Not Exist▲956

  This Word Does Not Exist uses an artificial intelligence model named GPT-2 to invent new English words.

  AI · 2020 · thisworddoesnotexist.com

• P3
  Plotting 3 years of hourly data in 150ms▲785

  Life & fun · 2020 · leeoniya.github.io

• 
  Untools▲783

  Hand-picked tools for better thinking

  Work · 2020 · untools.co

• 
  Copytesting▲781

  Improve your website copy based on data from your audience

  Growth · 2020 · wynter.com