ecto/loon

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the lisp I always wanted

Stars: 157
Forks: 6
Open beginner issues: 0
Indexed issues: 20

Dominant language: Rust
License: No license data
Last GitHub push: Aug 19, 2026
Latest indexed: Sep 20, 2026
Contributing guide: No contributing guide
Code of conduct: No code of conduct
Beginner labels: No beginner labels indexed
PR merge metrics: No merged PRs in 30d

Beginner friendly Everything

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20 open issues indexed

Request: Pre-built statically-linked binaries for Linux (musl) Open

Difficulty 4/5 3-5 days Newbie friendliness 48/100

ecto/loon#48 · Opened Jun 12, 2026
How does this work with AI ? Open

Difficulty 5/5 Over a week Newbie friendliness 30/100

ecto/loon#45 · Opened Jun 2, 2026
[P3] Document non-goals: arbitrary-precision/rational/complex, OOP, char type, multi-line comments Open

documentation

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

ecto/loon#29 · Opened May 21, 2026
[P3] Time as a standard effect (now, epoch, formatting) Open

enhancement

Difficulty 4/5 3-5 days Newbie friendliness 52/100

ecto/loon#28 · Opened May 21, 2026
[P2] IO.exit, env-var set, and IO.args default handler Open

bug enhancement

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

ecto/loon#27 · Opened May 21, 2026
[P2] Random number generation: rand, rand-int, seeding Open

enhancement

Difficulty 4/5 3-5 days Newbie friendliness 65/100

ecto/loon#26 · Opened May 21, 2026
[P2] No way to find the index of an element in a vector Open

enhancement

Difficulty 4/5 3-5 days Newbie friendliness 52/100

ecto/loon#25 · Opened May 21, 2026
[P2] Numeric literals: hex (0xFF), octal (0o17), binary (0b1010) Open

enhancement

Difficulty 3/5 1-2 days Newbie friendliness 74/100

ecto/loon#24 · Opened May 21, 2026
[P2] String helpers: capitalize, pad-left/pad-right, repeat Open

enhancement

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

ecto/loon#23 · Opened May 21, 2026
[P1] reduce returns () in every arg order — appears non-functional in the VM Open

bug

Difficulty 3/5 1-2 days Newbie friendliness 64/100

ecto/loon#22 · Opened May 21, 2026
[P1] assoc and update silently no-op on vectors (immutable index update unsupported) Open

bug

Difficulty 4/5 3-5 days Newbie friendliness 48/100

ecto/loon#21 · Opened May 21, 2026
[P1] Binary min/max return () — only the collection form works Open

bug

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

ecto/loon#20 · Opened May 21, 2026
[P1] Core math builtins missing: sqrt, pow, floor, ceil, round, trig, log, exp, pi, e Open

enhancement

Difficulty 4/5 3-5 days Newbie friendliness 55/100

ecto/loon#19 · Opened May 21, 2026
[P0] Vector and tuple patterns in match/let silently return () instead of binding Open

bug documentation

Difficulty 4/5 3-5 days Newbie friendliness 52/100

ecto/loon#17 · Opened May 21, 2026
[P3] Type aliases (type-synonym) Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 48/100

ecto/loon#16 · Opened May 21, 2026
[P3] File and directory I/O: list-dir, exists?, mkdir, remove, open/append Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 35/100

ecto/loon#15 · Opened May 21, 2026
[P0] Option/Result aren't constructable at runtime without a local type declaration Open

bug documentation

Difficulty 4/5 3-5 days Newbie friendliness 45/100

ecto/loon#14 · Opened May 21, 2026
A grammar for effects (~session types) Open

Difficulty 5/5 Over a week Newbie friendliness 20/100

ecto/loon#7 · Opened Feb 23, 2026
Installer script page not found Open

Difficulty 3/5 1-2 days Newbie friendliness 38/100

ecto/loon#2 · 9 reactions · Opened Feb 21, 2026
Playground `sig` unexpected behavior Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

ecto/loon#1 · Opened Feb 21, 2026

ecto/loon

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