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Gossamer programming language

Shares rank 149 of 163 programming languages by recommenders

Free Rust-like language with Rust function calls and goroutine-style concurrency; people like its design, but critics doubt claims of preemption, memory and ecosystem.

Free Rust-like language with Rust function calls and goroutine-style concurrency; people like its design, but critics doubt claims of preemption, memory and ecosystem.

16 people gave an opinion

recommend it
5
criticize it
11
approval share
31%
Each figure is one person. RecommendsCriticizes

Recommended in 1 of 13 months

  1. November 2025: not recommended
  2. December 2025: not 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

  • 5 people recommend itNeeds 10 or more, not met.
  • 0.4 recommenders for every criticNeeds 2 to 1 or better, not met.
  • Recommended in 1 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

  • Easy Rust interop and similar syntax

    “The syntax similarities help make for a more painless two language approach.”

    Comment from 29 Jun 2026 in “Gossamer: a Rust-flavoured language with real goroutines and pause-free memory”

    “All three points are erased by its ability to call Rust functions”

    Comment from 27 Jun 2026 in “Gossamer: a Rust-flavoured language with real goroutines and pause-free memory”
  • Appealing language design

    “the actual language design seems quite nice”

    Comment from 26 Jun 2026 in “Gossamer: a Rust-flavoured language with real goroutines and pause-free memory”

    “If Gossamer were to drop that claim, then I'd say it looks impressive to me.”

    Comment from 27 Jun 2026 in “Gossamer: a Rust-flavoured language with real goroutines and pause-free memory”

What people warn about

Each mark is one comment

  • Concurrency and memory claims overstated

    “Green threads are not impressive if they are not preemptive.”

    Comment from 27 Jun 2026 in “Gossamer: a Rust-flavoured language with real goroutines and pause-free memory”

    “That means it doesn't have "pause free" memory.”

    Comment from 26 Jun 2026 in “Gossamer: a Rust-flavoured language with real goroutines and pause-free memory”

    “m:n scheduled by io is .. 2000s-era”

    Comment from 26 Jun 2026 in “Gossamer: a Rust-flavoured language with real goroutines and pause-free memory”
  • Suspected vibe-coded, doubtful ecosystem

    “Even on the off chance this project is not entirely vibe coded how could it ever build an ecosystem?”

    Comment from 26 Jun 2026 in “Gossamer: a Rust-flavoured language with real goroutines and pause-free memory”

    “It's clearly vibecoded if you look at the commit history.”

    Comment from 26 Jun 2026 in “Gossamer: a Rust-flavoured language with real goroutines and pause-free memory”
  • Rust overhead and flavour claims questioned

    “Calling this rust flavored (or even a systems programming language) seems a bit bold.”

    Comment from 26 Jun 2026 in “Gossamer: a Rust-flavoured language with real goroutines and pause-free memory”

    “it isn't used for its own compiler. The compiler is written in Rust.”

    Comment from 27 Jun 2026 in “Gossamer: a Rust-flavoured language with real goroutines and pause-free memory”

    “it's going to have more overhead than rust when it's running”

    Comment from 26 Jun 2026 in “Gossamer: a Rust-flavoured language with real goroutines and pause-free memory”
  • Web routing example looks awkward

    “The web-routing thing is especially gross because a different example shows off pattern-matching.”

    Comment from 26 Jun 2026 in “Gossamer: a Rust-flavoured language with real goroutines and pause-free memory”

    “That web routing example is absolutely gross to my eye”

    Comment from 26 Jun 2026 in “Gossamer: a Rust-flavoured language with real goroutines and pause-free memory”

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.

Gossamer 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—
Gossamer programming languageThis page51131%1——
See all 163 programming languages, ranked

What people said

All 19 comments that mention it, newest first. Each links to the original comment.

“The syntax similarities help make for a more painless two language approach.”

RecommendsComment from 29 Jun 2026 in “Gossamer: a Rust-flavoured language with real goroutines and pause-free memory”

“pretty much every language except Gossamer can do”

CriticizesComment from 27 Jun 2026 in “Gossamer: a Rust-flavoured language with real goroutines and pause-free memory”

“All three points are erased by its ability to call Rust functions”

MixedComment from 27 Jun 2026 in “Gossamer: a Rust-flavoured language with real goroutines and pause-free memory”

“It should be suitable for hard real time systems.”

RecommendsComment from 27 Jun 2026 in “Gossamer: a Rust-flavoured language with real goroutines and pause-free memory”

“Green threads are not impressive if they are not preemptive.”

MixedComment from 27 Jun 2026 in “Gossamer: a Rust-flavoured language with real goroutines and pause-free memory”

“If Gossamer were to drop that claim, then I'd say it looks impressive to me.”

MixedComment from 27 Jun 2026 in “Gossamer: a Rust-flavoured language with real goroutines and pause-free memory”

“it isn't used for its own compiler. The compiler is written in Rust.”

CriticizesComment from 27 Jun 2026 in “Gossamer: a Rust-flavoured language with real goroutines and pause-free memory”

“it's going to have more overhead than rust when it's running”

CriticizesComment from 26 Jun 2026 in “Gossamer: a Rust-flavoured language with real goroutines and pause-free memory”

“Calling this rust flavored (or even a systems programming language) seems a bit bold.”

CriticizesComment from 26 Jun 2026 in “Gossamer: a Rust-flavoured language with real goroutines and pause-free memory”

“I don't get why you'd half fix it (by introducing spawn) but then leave it in anyways.”

CriticizesComment from 26 Jun 2026 in “Gossamer: a Rust-flavoured language with real goroutines and pause-free memory”

“Even on the off chance this project is not entirely vibe coded how could it ever build an ecosystem?”

MixedComment from 26 Jun 2026 in “Gossamer: a Rust-flavoured language with real goroutines and pause-free memory”

“the actual language design seems quite nice”

MixedComment from 26 Jun 2026 in “Gossamer: a Rust-flavoured language with real goroutines and pause-free memory”

“Python is sorting a set (unique values only), but I'm not seeing a unique or set approach for gossamer.”

CriticizesComment from 26 Jun 2026 in “Gossamer: a Rust-flavoured language with real goroutines and pause-free memory”

“The web-routing thing is especially gross because a different example shows off pattern-matching.”

CriticizesComment from 26 Jun 2026 in “Gossamer: a Rust-flavoured language with real goroutines and pause-free memory”

“m:n scheduled by io is .. 2000s-era”

CriticizesComment from 26 Jun 2026 in “Gossamer: a Rust-flavoured language with real goroutines and pause-free memory”

“It's clearly vibecoded if you look at the commit history.”

CriticizesComment from 26 Jun 2026 in “Gossamer: a Rust-flavoured language with real goroutines and pause-free memory”

“That web routing example is absolutely gross to my eye”

CriticizesComment from 26 Jun 2026 in “Gossamer: a Rust-flavoured language with real goroutines and pause-free memory”

“Glad to see more languages adopt true goroutines”

RecommendsComment from 26 Jun 2026 in “Gossamer: a Rust-flavoured language with real goroutines and pause-free memory”

“That means it doesn't have "pause free" memory.”

CriticizesComment from 26 Jun 2026 in “Gossamer: a Rust-flavoured language with real goroutines and pause-free memory”

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