Project ideas from Hacker News discussions.

Making your own programming language is easier than you think (but also harder)

📝 Discussion Summary (Click to expand)

Top 3 themes from the discussion

Theme Supporting quote
1️⃣ Creating a language is easy to start but becoming truly useful demands massive, sustained effort “Programming language development isn’t necessarily about being a genius but rather a willingness to put in a monumental amount of work… Specification, implementation, documentation, diagnostics, optimization, configuration, tooling support, and creating a standard library … will mire you in many hundreds of hours of work.” — applfanboysbgon
2️⃣ Often existing languages or libraries already solve the problem; a new language only makes sense if there’s a genuine gap “If someone smarter than me didn’t think to invent a new language to solve what is likely a common problem, the solution already exists.” — wildzzz
3️⃣ Practical implementation concerns (e.g., simple parsing, sandboxing) often outweigh language design ambitions “You do not need all this ceremony. A recursive descent parser that uses Pratt parsing will work for a vast majority of cases.” — sieve

These three themes capture the prevailing attitudes: the allure of building a new language, the heavyweight commitment required to make it viable, and the pragmatic reality that many of the same goals can be met with existing tools and languages.


🚀 Project Ideas

Generating project ideas…

LoonKit

Summary

  • A web‑based sandbox where users can prototype, compile, and share their own programming languages to WASM with one‑click deployment.
  • Eliminates the “build‑from‑scratch” friction that discourages hobbyist language creators.

Details

Key Value
Target Audience Indie language designers, educators, and tinkerers
Core Feature Visual grammar editor + instant WASM compilation + built‑in sandboxed runtime
Tech Stack React + TypeScript frontend, Emscripten/WASM backend, Docker sandbox
Difficulty Medium
Monetization Revenue-ready: subscription $9/mo for private templates & CI pipelines

Notes

  • HN commenters repeatedly stress the need for “easy sandboxing” and “no‑yacc” tooling — LoonKit delivers exactly that.
  • The marketplace angle taps into the frustration of “reinventing libraries” mentioned by several participants.

GrammarWizard#Summary

  • An automated compiler‑generator that takes a concise language specification and produces a ready‑to‑run front‑end, parser, and runtime without manual lexer/parser hand‑coding.
  • Solves the “avoid yacc/bison” pain point and lets developers focus on semantics.

Details

Key Value
Target Audience DSL creators, teachers, and language‑enthusiasts
Core Feature Spec‑to‑parser pipeline using LLM‑guided templates + Tree‑sitter integration
Tech Stack Python backend, OpenAI (or similar) LLM API, Tree‑sitter, Docker for isolated builds
Difficulty Low
Monetization Hobby

Notes

  • Directly addresses remarks like “most people learn from yacc… you don’t need that ceremony” and “the parser is never the bottleneck.”
  • Offers a quick path to create usable languages, matching the excitement of “Getting a language off the ground… surprisingly easy.”

LibLangHub

Summary

  • A curated marketplace for reusable language primitives (sandbox policies, AST transformers, standard libraries) that language creators can drop into new projects.
  • Reduces the “why does everyone rewrite libraries?” friction highlighted in the discussion.

Details

Key Value
Target Audience Language implementers, open‑source library authors, and hobbyist PL developers
Core Feature Versioned distribution of sandboxed runtime components + easy integration SDK
Tech Stack Node.js + GraphQL API, CDN static assets, container images for sandboxed execution
Difficulty Medium
Monetization Revenue-ready: revenue share 70/30 per download or optional $5/mo contributor tier

Notes

  • Commenters repeatedly lament the “reason why C++/Java/JS are established – the libraries,” and ask for “a fast libriscv emulator”‑style reusable pieces.
  • Provides a practical utility that could spark community discussion and adoption among the HN audience.

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