Spinel Ruby compiler
Ranked 2 of 4 Ruby implementations by recommenders
Ruby ahead-of-time compiler giving instant startup and good performance without warm-up; critics note it supports only a limited Ruby subset with no eval or metaprogramming.
Ruby ahead-of-time compiler giving instant startup and good performance without warm-up; critics note it supports only a limited Ruby subset with no eval or metaprogramming.
20 people gave an opinion
- recommend it
- 12
- criticize it
- 8
- approval share
- 60%
Recommended in 2 of 13 months
- November 2025: not recommended
- December 2025: not recommended
- January 2026: not recommended
- February 2026: not recommended
- March 2026: not recommended
- April 2026: recommended
- May 2026: not recommended
- June 2026: not recommended
- July 2026: not recommended
- August 2026: not recommended
- September 2026: not recommended
- October 2026: recommended
- November 2026: not recommended (month in progress)
Why it doesn’t carry the badge
- 12 people recommend itNeeds 10 or more, met.
- 1.5 recommenders for every criticNeeds 2 to 1 or better, not 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
Pragmatic design generating C
“Spinel is great as a pragmatic way of getting an AOT compiler for a Ruby subset though, but it's not that hard to support meta programming in an AOT compiler.”
Comment from 23 Oct 2026 in “Crystal 1.22” “generating C rather than LLVM IR makes sense for a first version you get portability and debuggability for free”
Comment from 26 Apr 2026 in “Spinel: Ruby AOT Native Compiler” “It's a very pragmatic design: Uses Prism - parsing Ruby is almost harder than the actual translation”
Comment from 24 Apr 2026 in “Spinel: Ruby AOT Native Compiler” Fills long-wanted Ruby AOT compiler gap
“This is really cool, I've been looking for an AOT compiler for ruby for a long time.”
Comment from 24 Apr 2026 in “Spinel: Ruby AOT Native Compiler” “wow, I wanted to have this for a long time.”
Comment from 24 Apr 2026 in “Spinel: Ruby AOT Native Compiler” Good potential for future projects
“If this stabilizes and gets networking support, there are definitely projects that I'll be able to use this for”
Comment from 24 Apr 2026 in “Spinel: Ruby AOT Native Compiler” “So I think it has quite a lot of potential but time will tell.”
Comment from 24 Apr 2026 in “Spinel: Ruby AOT Native Compiler”
What people warn about
Each mark is one comment
Only a subset of Ruby
“This is for a limited subset of Ruby - almost no popular Ruby gems would run under it.”
Comment from 24 Apr 2026 in “Spinel: Ruby AOT Native Compiler” “This subset of Ruby doesn’t either.”
Comment from 24 Apr 2026 in “Spinel: Ruby AOT Native Compiler” “This doesn't implement all of Ruby.”
Comment from 24 Apr 2026 in “Spinel: Ruby AOT Native Compiler” No eval, metaprogramming or threads
“Unless this gets back eval, metaprogramming and threads this isn't all that interesting as an actual language.”
Comment from 24 Apr 2026 in “Spinel: Ruby AOT Native Compiler” “This removes a large portion of the magic of Ruby.”
Comment from 24 Apr 2026 in “Spinel: Ruby AOT Native Compiler” Hard to read and maintain
“Now I see an application that looks genuinely interesting (not trivial slop) written by someone I consider to be a top notch programmer, and the code quality is still pretty garbage in some places.”
Comment from 24 Apr 2026 in “Spinel: Ruby AOT Native Compiler” “I find the current documentation difficult to understand.”
Comment from 24 Apr 2026 in “Spinel: Ruby AOT Native Compiler” “it is clearly not maintanable without AI agent”
Comment from 24 Apr 2026 in “Spinel: Ruby AOT Native Compiler” - Comment from 23 May 2026 in “Rubish: A Unix shell written in pure Ruby”
Other Ruby implementations people recommend
The three most recommended other Ruby implementations, 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.
| Product | Recommend | Criticize | Approval | Months | Owned | Badge |
|---|---|---|---|---|---|---|
| JRuby | 13 | 2 | 87% | 9 | — | Approved |
| Spinel Ruby compilerThis page | 12 | 8 | 60% | 2 | — | — |
| TruffleRuby | 10 | 1 | 91% | 8 | — | Approved |
| mruby | 8 | 3 | 73% | 4 | — | — |
What people said
22 of the 23 comments that mention it, newest first. Each links to the original comment.
“Spinel is great as a pragmatic way of getting an AOT compiler for a Ruby subset though, but it's not that hard to support meta programming in an AOT compiler.”
“Could also use Matz's Spinel Ruby compiler.”
“if you look at matz spinel, I have no idea what the AI slop in the README is really trying to convey.”
“The code looks impenetrable.”
“generating C rather than LLVM IR makes sense for a first version you get portability and debuggability for free”
“This doesn't implement all of Ruby.”
“If this stabilizes and gets networking support, there are definitely projects that I'll be able to use this for”
“Now I see an application that looks genuinely interesting (not trivial slop) written by someone I consider to be a top notch programmer, and the code quality is still pretty garbage in some places.”
“This removes a large portion of the magic of Ruby.”
“Unless this gets back eval, metaprogramming and threads this isn't all that interesting as an actual language.”
“This subset of Ruby doesn’t either.”
“I won't be able to use it for any real work at least in the short term”
“simpler and easier to understand but with the aesthetic beauty of Ruby intact”
“but some of the others likely are, for quite a few programs.”
“it is clearly not maintanable without AI agent”
“So I think it has quite a lot of potential but time will tell.”
“It's a very pragmatic design: Uses Prism - parsing Ruby is almost harder than the actual translation”
“instant startup and immediately decent performance without warm-up satisfying to use in practice”
“This is really cool, I've been looking for an AOT compiler for ruby for a long time.”
“This is for a limited subset of Ruby - almost no popular Ruby gems would run under it.”
“wow, I wanted to have this for a long time.”
“I find the current documentation difficult to understand.”
Counts come from 1,795,640 Hacker News comments, November 2025 to November 2026. How we count. Report a mistake.