Libghostty 1.0
Claim-checked. Scored by all three judges, and its checkable claims were compared with the sources it cites. How far stories are checked
Mitchell Hashimoto has released libghostty-vt 1.0, the C terminal-emulation library extracted from Ghostty, with a stable C ABI enforced in CI through libabigail checks and versioned ELF symbols. It also ships signed tarballs for offline distro packaging, and it builds for Linux, macOS, Windows, Android, iOS and WebAssembly. JetBrains IDE terminals now use it, and a Neovim replacement of libvterm is approved but awaiting a tagged release. Claims of broader usage, the 10,000-terminal test and the 1,500-line terminal come from the author and are unverified.
Why it ranked
No. 7 of 107 with a score of 0.69. The panel rated it highest on new information (0.92) and reader interest (0.83), lowest on audience breadth (0.60). Placed No. 7, No. 12 by score alone: the placement terms moved other stories past it.
- AI judgeJudge 2claude-haiku-5-5
- A stable 1.0 release of a widely adopted, portable terminal emulation library with concrete ABI, packaging and portability details; substantive and practically useful to builders, though it is a release announcement with some self-promotional tone.
- AI judgeJudge 3gpt-5.6-luna
- A substantive 1.0 release of a portable C terminal-emulation library, with unusually detailed ABI, packaging, portability, licensing, and resource-use information. Broad adoption makes it relevant, though significance is mainly within terminal and developer-tool ecosystems.
Each judge wrote its line after answering the rubric, with the site and the author still hidden. Every answer behind this is in the table under Score.
Score
0.69total under rubric v2.3
- Significance0.66
- Reader interest0.83
- Audience breadth0.60
- Practical relevance0.77
- Substantiated0.76
- Technical depth0.78
- New information0.92
- Counts against: Promotional0.14
- Counts against: Overclaim0.30
Each judge’s answer per question (0–1), their mean and spread, and what the question adds to the score (weight × mean).
| Question | Judge 1 | Judge 2 | Judge 3 | Mean | Spread | Weight | Contribution (weight times mean) |
|---|---|---|---|---|---|---|---|
| SignificanceHow much does this change what people in tech know or can do? | 0.73 | 0.60 | 0.65 | 0.66 | 0.14 | +0.24 | +0.159 |
| Reader interestWould a well-informed senior engineer or tech founder want to read this today, and likely pass it on? | 0.79 | 0.85 | 0.85 | 0.83 | 0.06 | +0.26 | +0.216 |
| Audience breadthHow many people who build technology does it concern? | 0.75 | 0.60 | 0.45 | 0.60 | 0.30 | +0.13 | +0.078 |
| Practical relevanceHow useful is it to someone who builds software or tech products? | 0.87 | 0.75 | 0.70 | 0.77 | 0.17 | +0.22 | +0.170 |
| SubstantiatedHow well is it backed? Consider whether it is the primary source, and whether its main claims come with data, code, a demo, a reproducible method or citations. | 0.86 | 0.60 | 0.82 | 0.76 | 0.26 | +0.05 | +0.038 |
| Technical depthHow technically substantive is it? | 0.85 | 0.70 | 0.78 | 0.78 | 0.15 | +0.05 | +0.039 |
| New informationDoes it contain information absent from the stories covered in the last 7 days (list provided)? | 0.88 | 0.90 | 0.98 | 0.92 | 0.10 | +0.05 | +0.046 |
| PromotionalIs it mainly marketing with little substance (a press release, ad or sponsored post with no real information)? A launch post that carries real news is not promotional. | 0.09 | 0.15 | 0.18 | 0.14 | 0.09 | −0.19 | −0.027 |
| OverclaimDo the headline or conclusions claim more than the body supports? | 0.31 | 0.30 | 0.30 | 0.30 | 0.01 | −0.11 | −0.033 |
| Sum of contributions | +0.686 | ||||||
| Claim-check penalty | 0.000 | ||||||
| Total, as published | 0.686 | ||||||
Spread is the highest minus the lowest judge answer. marks a spread above 0.40: the judges disagree, and the story is marked contested.
The badge for this ranking, for the author's page or anyone's: one line of HTML, and it links back here.
<a href="https://rubric.hrih.si/editions/2026-11-07/7/"><img src="https://rubric.hrih.si/badge/2026-11-07/7.svg" alt="Ranked #7 on Rubric, 7 Nov 2026" width="231" height="28"></a>Claim check
Claim check: 3 matches source · 2 no source given · 3 couldn’t check. Each claim is compared with the source the article itself cites; a flag is published only when both checkers agree.
Matches sourceVersion
The terminal in JetBrains IDEs now runs on libghostty.
The cited source says the same thing.
The article says “the terminal in JetBrains IDEs now runs on libghostty”
The source says “Starting with 2026.3, the built-in terminal in JetBrains IDEs speaks that same language. It now runs on libghostty , the terminal emulation library that powers Ghostty itself”
Source cited by the article: blog.jetbrains.com/platform/2026/10/jetbrains-terminal-now-uses-ghostty
Matches sourceNumber
JetBrains reports over 12.5 million active users, all of whom now have a libghostty-powered terminal.
The cited source says the same thing.
The article says “Based on a report by JetBrains, that's over 12.5 million active users”
The source says “12.5M+ Recurring Active Users”
Source cited by the article: jetbrains.com/lp/annualreport-2026
Couldn’t checkCausal conclusion
Neovim has an approved pull request replacing libvterm with libghostty-vt, which closes a 10-year-old issue about reflowing scrollback on resize.
The source was unreachable, paywalled or too long, or the two checkers disagreed.
The article says “Neovim has an approved pull request replacing libvterm with libghostty-vt. Among other things, it closes a 10-year-old issue about reflowing scrollback on resize”
The source says No passage could be compared.
Source cited by the article: github.com/neovim/neovim/pull/39773
Couldn’t checkNumber
Antithesis used libghostty to fuzz TUI programs and found real bugs in btop and others.
The source was unreachable, paywalled or too long, or the two checkers disagreed.
The article says “Antithesis used it to fuzz TUI programs and found real bugs in btop and others”
The source says No passage could be compared.
Source cited by the article: wickstrom.tech/2026-04-30-bombadil-terminal-experiment.html
No source givenFirst, only or fastest
More people use a terminal powered by libghostty than use the Ghostty application, by a very large multiple.
The article gives no link or citation for it.
The article says “More people today use a terminal powered by libghostty than use Ghostty the application, by a very large multiple”
The source says No source to compare with.
Matches sourceNumber
The awesome-libghostty list tracks well over a hundred projects.
The cited source says the same thing.
The article says “the awesome-libghostty list tracks well over a hundred projects”
The source says “A curated list of awesome projects, tools, and resources built with or for libghostty”
Source cited by the article: github.com/Uzaaft/awesome-libghostty
No source givenNumber
The author ran 10,000 active terminals, each with a live shell producing output, on a Linux server with 4 cores and 8 GB of RAM.
The article gives no link or citation for it.
The article says “I've run 10,000 active terminals, each with a live shell producing output, on a Linux server with 4 cores and 8 GB of RAM”
The source says No source to compare with.
Couldn’t checkFirst, only or fastest
A terminal can be created in about 1,500 lines of C with more features and better performance than just about any terminal that existed in 2025.
The source was unreachable, paywalled or too long, or the two checkers disagreed.
The article says “You can now create a terminal in ~1,500 lines of C that has more features and better performance than just about any terminal that existed in 2025”
The source says No passage could be compared.
Source cited by the article: github.com/ghostty-org/ghostling
Also covered by
No other coverage was clustered with this story.
Elsewhere
Elsewhere: HN 429 pts, front page
Recorded for context only, checked 7 Nov 2026, 05:47 UTC. It played no part in the ranking.