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xnu

XNU kernel is part of the Darwin operating system for use in macOS and iOS operating systems. XNU is an acronym for X is Not Unix. XNU is a hybrid kernel combining the Mach kernel developed at Carnegie Mellon University with components from FreeBSD and a C++ API for writing drivers called IOKit. XNU runs on x86_64 and ARM64 for both single processor and multi-processor configurations.

rt-thread

RT-Thread is an open source IoT Real-Time Operating System (RTOS). https://rt-thread.github.io/rt-thread/

Popularity
Repository stars3,82712,324Highest
7-day net stars——
Fork4575,486Highest
30-day trendInsufficient historyInsufficient history
Maintenance
Last push2026-06-182026-11-03
Maintenance notesNot verifiedNot verified
Repository created2021-10-042013-01-02
License & use
LicenseLicense not declaredApache-2.0 · Permissive
License sourceLicense sourceLicense source
PricingPricing not verifiedPricing not verified
Basics
Browse by purposeDeveloper tools · Deployment & operationsDeveloper tools · Deployment & operations
TypeApps & systemsApps & systems
SubcategoryOperating systems & kernelsOperating systems & kernels
PlatformNot verifiedNot verified
Cost detailsCheck current official software, hosting, model and infrastructure pricing.Check current official software, hosting, model and infrastructure pricing.
Pricing source——
First collected2026-11-032026-11-03
MetricRepository stars, not unique users or individual-skill installsRepository stars, not unique users or individual-skill installs
LanguageCC
About this projectXNU kernel is part of the Darwin operating system for use in macOS and iOS operating systems. XNU is an acronym for X is Not Unix. XNU is a hybrid kernel combining the Mach kernel developed at Carnegie Mellon University with components from FreeBSD and a C++ API for writing drivers called IOKit. XNU runs on x86_64 and ARM64 for both single processor and multi-processor configurations.RT-Thread is an open source IoT Real-Time Operating System (RTOS). https://rt-thread.github.io/rt-thread/
Repositoryapple-oss-distributions / xnuRT-Thread / rt-thread
Measured at2026-11-03 09:39 UTC2026-11-03 08:24 UTC

License tiers are derived from metadata. Check obligations for your use; unknown does not mean prohibited. Ranked by repository stars, one position per repository. Stars and forks are not user counts.