Gojju, a Fun Programming Language
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Hey HN! I built Gojju, a programming language that cherry-picks my favorite features from 5 languages:- Python: List comprehensions, slicing- Ruby: #{interpolation}, postfix if, blocks- Haskell: |> pipe operator, lambdas \x -> x+1, Maybe/Either- Perl: unless/until, regex literals- JavaScript: Arrow functions =>, spread ...Example: [1, 2, 3, 4, 5] |> filter(\x -> x % 2 == 0) |> map(\x -> x * 2) |> sum Install: `pip install gojju`The name "Gojju" (ಗೊಜ್ಜು) means "essence" or "secret ingredient" in Kannada.Would love feedback on the syntax choices!
HN · launched Jan 2, 2026 · 13 upvotes (top 42%) · 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?
Partial Toy interpreters can be scaffolded by LLMs, but building a robust multi-paradigm programming language with consistent AST semantics, type handling, and runtime execution requires dedicated compiler engineering.
What it would actually take: Likely built with a parser generator (or handwritten recursive descent parser) feeding an AST interpreter or bytecode VM written in Go, Rust, or Python. The hard part is reconciling disparate semantic models (pipes, blocks, list comprehensions, postfix syntax) into a sound grammar and error-free execution environment, requiring formal programming language design and compiler development skills.
Discussion
4 comments analyzed.
Competitors mentioned: Haskell, Nim, Python, Ruby
Concerns raised: Ruby-style string interpolation instead of Python f-strings, Banner too intrusive in scripts, Missing license file
Feature requests: Function calls with 0 or 1 arg without parentheses, Switch or environment variable to suppress banner, Better functional programming support in Python-like syntax
Competitors
Other products that read as similar to this one : 122 launches clear the similarity bar, closest 8 shown.
Attention rank: #48 of 123 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).
Launched 65 days after the earliest competitor.
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- OLY-Lang · github · 2026-09-28 · 16 upvotes · similarity 0.41
- GlyphLang · hn · 2026-01-10 · 44 upvotes · similarity 0.41
- A small programming language where everything is pass-by-value · hn · 2026-01-25 · 91 upvotes · similarity 0.40
- Han · hn · 2026-03-14 · 208 upvotes · similarity 0.40
- Prela · hn · 2026-06-15 · 6 upvotes · similarity 0.40
- The Taka Programming Language · hn · 2025-12-03 · 12 upvotes · similarity 0.39
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