v5.8.0 — Nyx C language runtime

🌙 Nyx C — first native programming language on NyxOS

v5.8.0 introduces Nyx C, a Go/Zig-inspired typed subset of C that transpiles to C and links against the nyxrt runtime. The first .nyx program — hello.nyx — writes to the terminal using string interpolation and direct syscalls.

What's new

• Nyx C runtime (user/nyxrt.h, user/nyxrt.c):
  • nyx_str, nyx_slice, nyx_result types, fixed-width integers
  • __nyx_syscall6 for ring-3 syscalls
  • String interpolation: __nyx_fmt_begin / _str / _i64
• First .nyx program: user/hello.nyx with write() and getpid()
• Build system: NYXCFLAGS rule in kernel/makefile, hello_nyx.elf linked with crt0+nyxrt, embedded in initramfs
• Version bump: v5.7.25 → v5.8.0

Verified

nyx:/$ exec /hello_nyx.elf
hola desde nyx c! pid=5
nyx:/$

Files included

File	Description
user/nyxrt.h	Runtime header — types, syscall ABI, format helpers
user/nyxrt.c	Runtime implementation — append with NUL, i64-to-string
user/hello.nyx	Nyx C source code
user/hello_nyx.c	C transpilation output from nyxc
kernel/makefile	Build rules (NYXCFLAGS, nyxrt.o/hello_nyx.o targets)
kernel/initramfs_data.h	Initramfs regenerated with hello_nyx.elf

Commits

• 330e497 — i18n: AGENTS.md + hello.nyx + hello_nyx.c English-only comments
• b390f5f — Website & README: Nyx C badge, v5.8.0 timeline update
• 42e6e63 — v5.8.0: Nyx C language runtime - first .nyx program on NyxOS
• 7e853bc — Nyx C runtime + first hello_nyx.elf on NyxOS