Owner

gren-lang

10 indexed repositories · View on GitHub

compiler
Compiler for the Gren programming language

Haskell · 503 stars
core
Gren's core package

JavaScript · 48 stars
book
The Gren Programming Language Book

MDX · 34 stars
gren-lang.github.io
The official website of the Gren programming language

Elm · 20 stars
node
Run Gren on NodeJS

JavaScript · 13 stars
browser
Run Gren in the browser

JavaScript · 3 stars
compiler-node
Node specific implementation of Gren compiler

JavaScript · 2 stars
package.gren-lang.org
The server backing package.gren-lang.org

JavaScript · 1 star
compiler-common
Common functionality of the Gren compiler

1 star
registry
New Gren package registry

Shell · 0 stars

Beginner friendly Everything

Open All

`compiler-common` rejects names that `gren make` compiles: `x中`, `xʰ`, `xǅ` and `ǅa` Open

bug

Difficulty 2/5 1-3 hours Newbie friendliness 76/100

gren-lang/compiler-common#38 · Opened Sep 14, 2026
`Bytes.toString` drops a leading U+FEFF, so a string does not survive `fromString` and back Open

bug

Difficulty 2/5 1-3 hours Newbie friendliness 75/100

gren-lang/core#155 · Opened Sep 14, 2026
`Bytes.Decode.bytes` reads past the end of the `Bytes` it is decoding Open

bug

Difficulty 2/5 1-3 hours Newbie friendliness 78/100

gren-lang/core#154 · Opened Sep 14, 2026
A `Bytes` value crossing a port carries its whole backing buffer, not the bytes it holds Open

bug

Difficulty 2/5 1-3 hours Newbie friendliness 78/100

gren-lang/core#153 · Opened Sep 14, 2026
`String.words` of a string with no words in it returns a 1-member Array instead of an empty Array Open

bug

Difficulty 2/5 1-3 hours Newbie friendliness 72/100

gren-lang/core#151 · Opened Sep 13, 2026
`Char.fromCode` throws a `RangeError` out of range, but its documentation says it returns U+FFFD Open

bug

Difficulty 2/5 1-3 hours Newbie friendliness 78/100

gren-lang/core#149 · Opened Sep 12, 2026
`FileSystem.FileHandle.writeFromOffset` ignores its offset and writes at position 0 Open

bug

Difficulty 2/5 1-3 hours Newbie friendliness 82/100

gren-lang/node#63 · Opened Sep 11, 2026
`Random` 's PCG algorithm is incorrect: `peel`'s multiply overflows float64 Open

bug

Difficulty 2/5 1-3 hours Newbie friendliness 82/100

gren-lang/core#146 · Opened Sep 11, 2026
A node program that crashes exits with status 0 Open

bug

Difficulty 2/5 1-3 hours Newbie friendliness 84/100

gren-lang/compiler#385 · Opened Sep 5, 2026
`chompIf` / `chompWhile` hand the predicate half a surrogate pair Open

bug

Difficulty 2/5 1-3 hours Newbie friendliness 88/100

gren-lang/core#138 · Opened Sep 3, 2026
`\u{FFFF}` in a string literal produces the wrong result for a couple different reasons Open

bug

Difficulty 2/5 1-3 hours Newbie friendliness 88/100

gren-lang/compiler#384 · Opened Sep 3, 2026
`//` truncates its result to 32 bits when inlined, but not when passed as a function Open

bug good first issue

Difficulty 2/5 1-3 hours Newbie friendliness 84/100

gren-lang/compiler#383 · 1 comment · Opened Aug 31, 2026
Bytes.flatten reads each input from offset 0 of its backing buffer even when it shouldn't Open

bug

Difficulty 2/5 1-3 hours Newbie friendliness 72/100

gren-lang/core#137 · 1 comment · Opened Aug 16, 2026
HttpClient.withBytesBody ignores byteOffset/byteLength and sends the whole backing buffer Open

bug

Difficulty 2/5 1-3 hours Newbie friendliness 86/100

gren-lang/node#57 · Opened Aug 16, 2026
hexFolder returns the wrong value for 27 exactly-representable hex literals near 2^53 Open

bug

Difficulty 2/5 1-3 hours Newbie friendliness 84/100

gren-lang/compiler-common#36 · Opened Aug 11, 2026
let-in expression end position includes trailing whitespace Open

bug

Difficulty 2/5 1-3 hours Newbie friendliness 72/100

gren-lang/compiler-common#13 · 1 comment · Opened May 3, 2026
In the section on Node applications, please warn users about the name of the output file Open

documentation enhancement good first issue

Difficulty 2/5 1-3 hours Newbie friendliness 62/100

gren-lang/book#55 · 1 comment · Opened Mar 27, 2026
Empty search query returns nothing Open

Difficulty 2/5 1-3 hours Newbie friendliness 62/100

gren-lang/package.gren-lang.org#45 · Opened Jan 16, 2026
Add Html.none, Html.Attributes.none Open

Difficulty 2/5 1-3 hours Newbie friendliness 68/100

gren-lang/browser#104 · Opened Oct 21, 2025
Custom types with more than 2 variants Open

Difficulty 1/5 Under an hour Newbie friendliness 72/100

gren-lang/book#49 · Opened Aug 16, 2025
Bug in Nested TEA example Open

bug

Difficulty 1/5 Under an hour Newbie friendliness 65/100

gren-lang/book#45 · Opened Jul 2, 2025

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