apache/nuttx
Apache NuttX is a mature, real-time embedded operating system (RTOS)
Is apache/nuttx beginner-friendly?
In the last 30 days, apache/nuttx merged 772 of 937 pull requests from outside contributors, and its maintainers usually reply within 1 day. 3 beginner-friendly issues are open now.
- Stars
- 4.1k
- Forks
- 1.8k
- Open beginner issues
- 3
- Indexed issues
- 661
- Avg merge
- 1d 3h
- Merged PRs (30d)
- 833
- Dominant language
- C
- License
- Apache-2.0
- Last GitHub push
- Nov 7, 2026
- Latest indexed
- Sep 14, 2026
- Contributing guide
- Contributing guide
- Code of conduct
- Code of conduct
- Beginner labels
- No beginner labels indexed
How to contribute to apache/nuttx
- Read the contributing guide first: it says how the maintainers want changes proposed, tested and reviewed.
- Read its code of conduct: it covers issues and pull requests as well as chat.
- Your contributions will be published under the project's Apache-2.0 license.
- Pick one of the 3 open beginner-friendly issues below and comment that you want to work on it before you start.
Issues somebody may already be working on are listed last. List everything by date
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Arch: all Area: Networking OS: Linux
Difficulty 4/5 3-5 days Newbie friendliness 48/100
Maintainers usually reply within 1 day
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Type: Enhancement
Difficulty 4/5 3-5 days Newbie friendliness 22/100
apache/nuttx#21581 · 1 comment ·
Maintainers usually reply within 1 day
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Arch: simulator Arch: xtensa Area: Kernel OS: Mac Type: Bug
Difficulty 4/5 3-5 days Newbie friendliness 48/100
apache/nuttx#21499 · 1 comment ·
Maintainers usually reply within 1 day
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Type: Enhancement
Difficulty 5/5 Over a week Newbie friendliness 25/100
apache/nuttx#21482 · 1 comment ·
Maintainers usually reply within 1 day
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Difficulty 5/5 Over a week Newbie friendliness 25/100
apache/nuttx#21478 · 4 comments · 1 reaction ·
Maintainers usually reply within 1 day
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Arch: all Arch: arm Area: Build system OS: Linux Type: Bug
Difficulty 2/5 1-3 hours Newbie friendliness 65/100
Maintainers usually reply within 1 day
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Type: Enhancement
Difficulty 4/5 3-5 days Newbie friendliness 35/100
Maintainers usually reply within 1 day
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Difficulty 5/5 Over a week Newbie friendliness 25/100
apache/nuttx#21075 · 1 comment ·
Maintainers usually reply within 1 day
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arch/arm/stm32: serial setformat writes CR1 parity/word-length bits with UE=1 in several driversMay be free again @ashishgit4 claimed this 19 days ago, and no pull request is open. Open
Difficulty 4/5 3-5 days Newbie friendliness 55/100
apache/nuttx#20969 · 2 comments ·
Maintainers usually reply within 1 day
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Arch: risc-v Area: Memory Management OS: Linux Type: Bug
Difficulty 5/5 Over a week Newbie friendliness 38/100
apache/nuttx#20582 · 3 comments ·
Maintainers usually reply within 1 day
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Type: Enhancement
Difficulty 5/5 Over a week Newbie friendliness 25/100
apache/nuttx#20501 · 4 comments ·
Maintainers usually reply within 1 day
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Arch: all Area: Applications Area: Posix OS: BSD OS: Linux OS: Mac OS: Windows Type: Bug
Difficulty 5/5 Over a week Newbie friendliness 35/100
apache/nuttx#20407 · 3 comments ·
Maintainers usually reply within 1 day
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Difficulty 4/5 3-5 days Newbie friendliness 45/100
apache/nuttx#20244 · 1 comment ·
Maintainers usually reply within 1 day
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Community: Question
Difficulty 4/5 3-5 days Newbie friendliness 45/100
apache/nuttx#20154 · 4 comments ·
Maintainers usually reply within 1 day
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Community: Question
Difficulty 4/5 3-5 days Newbie friendliness 35/100
apache/nuttx#20113 · 6 comments ·
Maintainers usually reply within 1 day
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[FEATURE] Add kernel build tests for CIMay be free again A pull request for this issue was closed without being merged. OpenType: Enhancement
Difficulty 4/5 3-5 days Newbie friendliness 48/100
apache/nuttx#20031 · 1 comment ·
Maintainers usually reply within 1 day
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Type: Enhancement
Difficulty 4/5 3-5 days Newbie friendliness 48/100
apache/nuttx#19994 · 11 comments ·
Maintainers usually reply within 1 day
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Community: Question
Difficulty 5/5 Over a week Newbie friendliness 25/100
apache/nuttx#19908 · 1 comment ·
Maintainers usually reply within 1 day
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Community: Question
Difficulty 4/5 3-5 days Newbie friendliness 45/100
apache/nuttx#19906 · 4 comments ·
Maintainers usually reply within 1 day
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Type: Enhancement
Difficulty 5/5 Over a week Newbie friendliness 20/100
apache/nuttx#19838 · 10 comments ·
Maintainers usually reply within 1 day
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Community: Question
Difficulty 5/5 Over a week Newbie friendliness 35/100
apache/nuttx#19756 · 1 comment ·
Maintainers usually reply within 1 day
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Arch: risc-v Area: Kernel OS: Linux Type: Bug
Difficulty 3/5 1-2 days Newbie friendliness 55/100
apache/nuttx#19713 · 2 comments ·
Maintainers usually reply within 1 day
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Community: Question
Difficulty 5/5 Over a week Newbie friendliness 30/100
apache/nuttx#19679 · 5 comments ·
Maintainers usually reply within 1 day
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Community: Question
Difficulty 5/5 Over a week Newbie friendliness 38/100
apache/nuttx#19549 · 1 comment ·
Maintainers usually reply within 1 day
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Type: Enhancement
Difficulty 5/5 Over a week Newbie friendliness 25/100
apache/nuttx#19511 · 1 comment ·
Maintainers usually reply within 1 day
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Difficulty 2/5 1-3 hours Newbie friendliness 72/100
apache/nuttx#19435 · 9 comments ·
Maintainers usually reply within 1 day
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Community: Question
Difficulty 3/5 1-2 days Newbie friendliness 48/100
Maintainers usually reply within 1 day
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Community: Question
Difficulty 4/5 3-5 days Newbie friendliness 35/100
apache/nuttx#19370 · 2 comments ·
Maintainers usually reply within 1 day
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[BUG] I2S operations are not adhered to by lower-half implementationsMay be free again @linguini1 claimed this 130 days ago, and no pull request is open. OpenArch: all Area: Drivers OS: Linux Type: Bug
apache/nuttx#19309 · 5 comments · 1 reaction · 2 assignees ·
Maintainers usually reply within 1 day
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sched/task: nxtask_exit() frees the wrong TCB on non-SMP when a higher-priority task holds the ready-to-run headMay be free again A pull request for this issue was closed without being merged. Open
Difficulty 3/5 1-2 days Newbie friendliness 72/100
Maintainers usually reply within 1 day
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Type: Enhancement
Difficulty 5/5 Over a week Newbie friendliness 25/100
apache/nuttx#19296 · 2 comments ·
Maintainers usually reply within 1 day
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Arch: arm Area: Networking OS: Linux Type: Bug
Difficulty 4/5 3-5 days Newbie friendliness 45/100
apache/nuttx#19254 · 2 comments ·
Maintainers usually reply within 1 day
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Arch: arm Area: Applications Area: OS Components OS: Linux Type: Bug
Difficulty 4/5 3-5 days Newbie friendliness 45/100
Maintainers usually reply within 1 day
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[FEATURE] RPi4B audio support over I2SMay be free again @linguini1 claimed this 135 days ago, and no pull request is open. OpenType: Enhancement
apache/nuttx#19252 · 2 comments · 1 assignee ·
Maintainers usually reply within 1 day
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Type: Enhancement
Difficulty 4/5 3-5 days Newbie friendliness 42/100
apache/nuttx#19243 · 1 comment ·
Maintainers usually reply within 1 day
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Community: Question
Difficulty 3/5 1-2 days Newbie friendliness 45/100
Maintainers usually reply within 1 day
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Arch: risc-v Area: Board support OS: Linux Type: Bug
Difficulty 4/5 3-5 days Newbie friendliness 55/100
apache/nuttx#19120 · 1 comment ·
Maintainers usually reply within 1 day
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Community: Question
Difficulty 4/5 3-5 days Newbie friendliness 42/100
apache/nuttx#19017 · 4 comments ·
Maintainers usually reply within 1 day
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Difficulty 4/5 3-5 days Newbie friendliness 28/100
apache/nuttx#18906 · 1 comment · 1 reaction ·
Maintainers usually reply within 1 day
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[FEATURE] "portable" implementation for POSIX's uint64_t time.May be free again @Brijesh-Thakkar claimed this 21 days ago, and no pull request is open. OpenArch: avr Arch: avr32 Arch: avr8 Arch: mips Arch: risc-v Arch: simulator Arch: x86 Arch: xtensa Arch: z16 Arch: z80 Area: Documentation Area: Kernel Area: Modularity Area: Posix Area: Standards Board: all Type: Enhancement Type: Improvement
Difficulty 5/5 Over a week Newbie friendliness 25/100
apache/nuttx#18849 · 9 comments ·
Maintainers usually reply within 1 day
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Arch: risc-v Area: File System OS: Linux Type: Bug
Difficulty 4/5 3-5 days Newbie friendliness 42/100
apache/nuttx#18803 · 2 comments ·
Maintainers usually reply within 1 day
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Arch: all Area: Networking OS: Linux Type: Bug
Difficulty 5/5 Over a week Newbie friendliness 30/100
apache/nuttx#18762 · 2 comments ·
Maintainers usually reply within 1 day
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Type: Enhancement
Difficulty 5/5 Over a week Newbie friendliness 35/100
apache/nuttx#18710 · 3 comments ·
Maintainers usually reply within 1 day
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Type: Enhancement
Difficulty 5/5 Over a week Newbie friendliness 25/100
apache/nuttx#18659 · 1 comment · 1 reaction ·
Maintainers usually reply within 1 day
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[LCD] Move LCD pin definitions to Kconfig.May be free again @cederom claimed this 236 days ago, and no pull request is open. OpenArea: Specific Peripheral
apache/nuttx#18580 · 13 comments · 1 assignee ·
Maintainers usually reply within 1 day
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Community: Question
Difficulty 2/5 1-3 hours Newbie friendliness 35/100
apache/nuttx#18568 · 21 comments · 2 reactions ·
Maintainers usually reply within 1 day
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Community: Question gsoc2026
Difficulty 5/5 Over a week Newbie friendliness 25/100
apache/nuttx#18566 · 96 comments · 1 reaction ·
Maintainers usually reply within 1 day
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Type: Enhancement
Difficulty 5/5 Over a week Newbie friendliness 30/100
apache/nuttx#18522 · 7 comments ·
Maintainers usually reply within 1 day
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[DISCUSSION] Source list dependency graphMay be free again @linguini1 claimed this 249 days ago, and no pull request is open. OpenCommunity: Discussion Community: Proposal Type: Enhancement
apache/nuttx#18514 · 18 comments · 1 reaction · 1 assignee ·
Maintainers usually reply within 1 day
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[GSOC26] Fully Porting NuttX to the Raspberry Pi 4BMay be free again @cederom claimed this 251 days ago, and no pull request is open. Opengsoc2026
apache/nuttx#18507 · 14 comments · 4 reactions · 2 assignees ·
Maintainers usually reply within 1 day
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