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.

1,668 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
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
Open
POWER10 ChaCha20 assembly fails to restore callee-save registers
branch: 3.3branch: 3.4branch: 3.5branch: 3.6branch: 4.0branch: masterhelp wantedseverity: importanttriaged: bug
Why recommendedHas a beginner-friendly label · Contributing guide available
Has a beginner-friendly labelContributing guide available

openssl / openssl · #30584 · Mar 26, 2026 · C · 30,157 stars

4 comments0 reactions1 assignee
Open
CVSD file format support
Enhancement Requestgood first issue
Why recommendedHas a beginner-friendly label · Contributing guide available
Has a beginner-friendly labelContributing guide available

audacity / audacity · #10570 · Mar 20, 2026 · C · 13,113 stars

2 comments0 reactions1 assignee
Open
[Bug] AnnePro2/C15 LEDs don't work
bughelp wanted
Why recommendedNo assignee yet · No comments yet
No assignee yetNo comments yetHas a beginner-friendly labelContributing guide available

qmk / qmk_firmware · #26093 · Mar 19, 2026 · C · 20,368 stars

0 comments0 reactions0 assignees
Open
vpsm4_ex-armv8.pl implementation bug
branch: 3.5branch: 3.6branch: 4.0branch: masterhelp wantedtriaged: bug
Why recommendedNo assignee yet · No comments yet
No assignee yetNo comments yetHas a beginner-friendly labelContributing guide available

openssl / openssl · #30409 · Mar 13, 2026 · C · 30,157 stars

0 comments0 reactions0 assignees
Open
Implement RFC 9861 KangarooTwelve and TurboSHAKE
help wantedtriaged: feature
Why recommendedNo assignee yet · Has a beginner-friendly label
No assignee yetHas a beginner-friendly labelContributing guide available

openssl / openssl · #30304 · Mar 8, 2026 · C · 30,157 stars

11 comments0 reactions0 assignees
Open
Optimize process_record_quantum call order
discussionenhancementhelp wanted
Why recommendedNo assignee yet · Has a beginner-friendly label
No assignee yetHas a beginner-friendly labelContributing guide available

qmk / qmk_firmware · #26048 · Mar 5, 2026 · C · 20,368 stars

2 comments1 reaction0 assignees