32-level priority bitmap scheduler with real-time and background QoS tiers. Context switches in constant time regardless of task count.

Copy-on-write fork, demand-zero anonymous pages, RB-tree VMA lookup for O(log n) mmap/munmap, and a clock-algorithm swap daemon.

Views compositor with overlapping windows, a taskbar, application launcher, and login screen. Run Doom and Tessera side-by-side.

Intel AC97 audio codec driver with DMA playback. Doom's soundtrack plays through the same kernel that boots the OS.

One machine-independent kernel + userland over a thin arch layer. The same source boots on ARM64 (virt + GICv2) and x86_64 (APIC + virtio) — with real-hardware ARM boards next.

musl libc 1.2.5 ported and running. ELF dynamic linker loads shared libraries at runtime — the same way Linux does it.

Every account defaults to tcsh 6.24.16 — tab completion, history, job control. busybox 1.36.1 backs a full coreutils suite plus vi: grep, find, less, sort, cp, mv, and more.

Full POSIX signal delivery: sigaction, sigprocmask, sigsuspend, SA_SIGINFO frames, SA_RESTART, and process groups. Ctrl-C works.

DOOM (windowed + fullscreen) and Tessera — a Tetris-inspired puzzle game in the Views compositor. Two playable games on a homebrew kernel.

Per-user wallpapers, solid/jailbars backgrounds, and an accent color that themes the whole taskbar and window chrome. Ships with original synthwave art.

In-kernel lwIP over virtio-net with DHCP, a BSD sockets API, and userland tools — wget, httpsget (BearSSL), and nc — feeding the NetSurf browser.

A hierarchical, typed config registry persisted to disk and served over MPI. Backs the desktop, theming, start menu, and network settings — with per-user layering.