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Boo programming language

Shares rank 121 of 163 programming languages by recommenders

Free .NET language that people praise for metaprogramming and multi-phase compilation. Caveat: it was deprecated and removed from Unity.

Free .NET language that people praise for metaprogramming and multi-phase compilation. Caveat: it was deprecated and removed from Unity.

8 people gave an opinion

recommend it
7
criticize it
1
approval share
88%
Each figure is one person. RecommendsCriticizes

Recommended in 2 of 13 months

  1. November 2025: not recommended
  2. December 2025: recommended
  3. January 2026: not recommended
  4. February 2026: not recommended
  5. March 2026: not recommended
  6. April 2026: not recommended
  7. May 2026: not recommended
  8. June 2026: recommended
  9. July 2026: not recommended
  10. August 2026: not recommended
  11. September 2026: not recommended
  12. October 2026: not recommended
  13. November 2026: not recommended (month in progress)

Why it doesn’t carry the badge

  • 7 people recommend itNeeds 10 or more, not met.
  • 7 recommenders for every criticNeeds 2 to 1 or better, met.
  • Recommended in 2 of 13 monthsNeeds 4 or more, not met.

The same three rules apply to every product, and the badge can’t be bought. How the badge works

What people say about it

The reasons people give, with the number of comments that give each one. Open a reason to read what they said.

Why people recommend it

Each mark is one comment

  • Strong metaprogramming and multi-phase compilation

    “Boo was so good at metaprogramming and multi-phasr programming!”

    Comment from 25 Dec 2025 in “Comptime – C# meta-programming with compile-time code generation and evaluation”
  • Showed what was possible on .NET

    “Boo and Nemerle both were really showing what was possible in .NET back in the early days.”

    Comment from 25 Dec 2025 in “Comptime – C# meta-programming with compile-time code generation and evaluation”

What people warn about

Each mark is one comment

  • Deprecated and removed from Unity

    “UnityScript and Boo got deprecated and removed”

    Comment from 29 Dec 2025 in “Unity's Mono problem: Why your C# code runs slower than it should”
  • Reported error running boo new

    “getting “error: ReadOnlyFileSystem” on ‘boo new’. Definitely interested in something like this”

    Comment from 11 Jun 2026 in “Show HN: Boo – screen-style terminal multiplexer built on libghostty”
  • Discussions fizzle out

    “the conversations always fizzle out”

    Comment from 31 Jul 2026 in “Online Friends Are Real Friends”

Other programming languages people recommend

The four most recommended other programming languages, with the same counts for each, so you can compare like for like. The tick on each bar marks the 2 to 1 line the badge needs.

Boo programming language compared with 4 alternatives
ProductRecommendCriticizeApprovalMonthsOwnedBadge
Rust2,03997368%134 yrs118 ownersApproved
Go1,25465166%135.9 yrs63 owners—
Python1,06782157%1218 yrs64 owners—
Zig74344962%121 yr27 owners—
Boo programming languageThis page7188%2——
See all 163 programming languages, ranked

What people said

5 of the 8 comments that mention it, newest first. Each links to the original comment.

“the conversations always fizzle out”

CriticizesComment from 31 Jul 2026 in “Online Friends Are Real Friends”

“getting “error: ReadOnlyFileSystem” on ‘boo new’. Definitely interested in something like this”

MixedComment from 11 Jun 2026 in “Show HN: Boo – screen-style terminal multiplexer built on libghostty”

“UnityScript and Boo got deprecated and removed”

MixedComment from 29 Dec 2025 in “Unity's Mono problem: Why your C# code runs slower than it should”

“Boo and Nemerle both were really showing what was possible in .NET back in the early days.”

RecommendsComment from 25 Dec 2025 in “Comptime – C# meta-programming with compile-time code generation and evaluation”

“Boo was so good at metaprogramming and multi-phasr programming!”

RecommendsComment from 25 Dec 2025 in “Comptime – C# meta-programming with compile-time code generation and evaluation”

Counts come from 1,795,640 Hacker News comments, November 2025 to November 2026. How we count. Report a mistake.