Curated Issues

C Good First Issues

Browse open source issues tagged with C in the issue metadata. Results stay focused on work that can become public contribution evidence.

1,905 matching issues

C

Slice signals

  • Average annotated difficulty: 2.7/5 across 1,905 issues.
  • 70% of 1,905 time estimates are one day or less.
Open
X25519: optionally use unclamped private keys
help wantedtriaged: feature
Why recommendedNo assignee yet · Has a beginner-friendly label
No assignee yetHas a beginner-friendly labelContributing guide available

openssl / openssl · #30831 · Apr 15, 2026 · C · 30,157 stars

4 comments0 reactions0 assignees
Open
Support more robust retries
enhancementgood first issuerefined
Why recommendedNo assignee yet · Has a beginner-friendly label
No assignee yetHas a beginner-friendly labelContributing guide available

nginx / nginx · #1263 · Apr 13, 2026 · C · 30,331 stars

4 comments0 reactions0 assignees
Open
Support full HTTP request timeouts
enhancementgood first issuerefined
Why recommendedNo assignee yet · Has a beginner-friendly label
No assignee yetHas a beginner-friendly labelContributing guide available

nginx / nginx · #1262 · Apr 13, 2026 · C · 30,331 stars

2 comments0 reactions0 assignees
Open
Deduplicate HTTP/2 code
enhancementgood first issuerefined
Why recommendedHas a beginner-friendly label · Contributing guide available
Has a beginner-friendly labelContributing guide available

nginx / nginx · #1250 · Apr 5, 2026 · C · 30,331 stars

8 comments0 reactions2 assignees
Open
Feature Request: Support for a MATLAB module
enhancementhelp wanted
Why recommendedNo assignee yet · Has a beginner-friendly label
No assignee yetHas a beginner-friendly labelContributing guide available

mesonbuild / meson · #15668 · Apr 1, 2026 · Python · 4,978 stars

5 comments0 reactions0 assignees
Open
Add config generation number to process titles
enhancementfeaturegood first issuerefined
Why recommendedNo assignee yet · No comments yet
No assignee yetNo comments yetHas a beginner-friendly labelContributing guide available

nginx / nginx · #1238 · Mar 31, 2026 · C · 30,331 stars

0 comments0 reactions0 assignees
Open
Improve consistency of directio handling
enhancementfeaturegood first issuerefined
Why recommendedHas a beginner-friendly label · Contributing guide available
Has a beginner-friendly labelContributing guide available

nginx / nginx · #1236 · Mar 31, 2026 · C · 30,331 stars

1 comment0 reactions1 assignee
Open
Switched $request_time tracking to ngx_current_msec
enhancementfeaturegood first issuerefined
Why recommendedHas a beginner-friendly label · Contributing guide available
Has a beginner-friendly labelContributing guide available

nginx / nginx · #1235 · Mar 31, 2026 · C · 30,331 stars

1 comment0 reactions1 assignee
Open
导入数据集时遇到了性能问题
help wantedquestion
Why recommendedNo assignee yet · Has a beginner-friendly label
No assignee yetHas a beginner-friendly labelContributing guide available

taosdata / TDengine · #34980 · Mar 29, 2026 · C · 24,849 stars

2 comments0 reactions0 assignees