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Building a Rust-ish programming language with 100% coding agents: Wado

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I started this in January and haven't written a line of the compiler myself. Coding agents write every line; I do design and taste. Wado is a Rust-flavored, GC'd language for WebAssembly Component Model.Try it in the browser, and ask me anything!

HN · launched Jul 17, 2026 · 5 upvotes (top 89%) · 0 views

Niche: programming languages and interpreters · 161 launches, 2 in the last 7 days ▼ -75% · Explore this niche →

Category and tags
  • Horizontal
  • Dev tools
  • Developer
  • Not AI
  • Hobby / open-source project

Visit website ↗ Source listing ↗

More like this: all 161 launches in programming languages and interpreters →

Could you build this?

No Designing and building a functional garbage-collected language targeting the WebAssembly Component Model requires extensive compiler engineering, type theory, and low-level bytecode/runtime generation.

What it would actually take: Requires building a full compiler architecture (lexer, AST, semantic analyzer, monomorphization, GC integration, and code generation) specifically conforming to the complex WebAssembly Component Model / WIT specifications. Even with AI assistance writing code lines, architecting correct memory models, garbage collection runtimes, and ABI component bindings requires expert compiler knowledge.

Discussion

2 comments analyzed.

Competitors

Other products that read as similar to this one : 200 launches clear the similarity bar, closest 8 shown.

Attention rank: #187 of 201 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).

Launched 258 days after the earliest competitor.

  • Kodo · ph · 2026-09-07 · 1 upvotes · similarity 0.46
  • WAMR3D · ph · 2026-11-13 · 3 upvotes · similarity 0.45
  • AbdoCode · ph · 2026-09-16 · 1 upvotes · similarity 0.45
  • Waputer · hn · 2026-04-17 · 7 upvotes · similarity 0.44
  • Han · hn · 2026-03-14 · 208 upvotes · similarity 0.43
  • opencode-rust · github · 2026-10-13 · 72 upvotes · similarity 0.43
  • Whiteboard (YC W26) · hn · 2026-09-24 · 421 upvotes · similarity 0.43
  • Sere Language · ph · 2026-09-14 · 1 upvotes · similarity 0.42

Related data

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