AGPL + syscall note

License

The kernel is copyleft. Programs that merely call it are not.

Syscall note (summary). The AGPL-3.0 license of the thatteOS kernel does not cover user programs that use kernel services through normal system calls, message-passing IPC, or the thatteOS ABI. That is normal use of the kernel and does not make such programs derivative works of the kernel. Write and distribute userspace under any terms you choose.

Kernel

  • AGPL-3.0 — full text in the OSS LICENSE
  • COPYING.SYSCALL-NOTE — the boundary note above, also in the repo
  • Code statically linked into the kernel, kernel modules, or modified kernel versions remain under AGPL in full

Copyright

© Manish Jagdish Thatte, 2026. Site counterparty for this domain: Saptarang Ventures (OPC) Private Limited.

Commercial / dual license

Proprietary kernel derivatives and commercial terms: manish@saptarang.net.

Patents

Hardware patent applications are summarised at NOTICE altitude — not a claim browser.