gungnir

what it does

Full VT100/xterm parsing, the kitty keyboard protocol, and the kitty graphics protocol: transmit, placement, Unicode-placeholder images, zlib decompression, and a=q query support. SGR including underline styles, strikethrough, and reverse video. DECSCUSR cursor styles.

OSC 8

hyperlinks

OSC 9 / 777

notifications

OSC 133

prompt marks and jump

OSC 52

clipboard get/set

OSC 4/10/11/12

palette and fg/bg/cursor color get/set, the thing fzf and vim colorschemes actually rely on

SGR mouse

1000/1002/1003/1006

Real ligature shaping through HarfBuzz, with per-row shape-result caching so a static line only gets reshaped once. Closer to Muninn's job than Huginn's: remember what's already been seen instead of thinking it through again. A font-fallback face for glyphs missing from your primary font, so a Nerd Font's gaps don't render as blank tofu boxes.

features

Resizable splitsCtrl+Shift+D/S to split, mouse-drag or Ctrl+Shift+Alt+arrows to resize, click or Ctrl+Shift+]/[ to change focus. Every split branches off the last, the way Yggdrasil's boughs never stop forking.

Session save/restoreCome back to where you left off.

Hint marksCtrl+Shift+M, copy any matched word/path/URL by typing its label.

Scrollback searchLive font zoom and config hot-reload too.

Remote controlTCP on 127.0.0.1, a kitty @-compatible-ish command set.

Isolated test suitesrc/term has no GLFW/OpenGL dependency, runs headless.

remote control

TCP on 127.0.0.1:<remote_control_port>, a kitty @-compatible-ish command set. Bespoke text-over-TCP, not a literal wire-protocol clone of kitty's own remote control, that was never the goal. A small bridge from the terminal to whatever's driving it, the same job Bifrost does for everyone else.

window/tab

ls, new-tab, close-tab, focus-tab, new-window, close-window, resize-window, set-window-title

input

send-text, send-key, scroll-window

appearance

get-colors, set-colors, font-size, get-text

runes

gungnir's own small answer to kitty's kittens: gungnir runes <name>

icat <path>image display through the same kitty graphics wire format gungnir already parses

clip --copy/--pastean OSC 52 clipboard bridge

hints [--pattern]a standalone, pipe-friendly version of the in-terminal hint picker

unicode [--copy]a curated symbol picker, arrows/box-drawing/math/checks, substring-filter-as-you-type

install

You need the Odin compiler, plus GLFW, FreeType, and HarfBuzz as system libraries.

# arch
sudo pacman -S odin glfw freetype2 harfbuzz

# debian/ubuntu: install odin from the official instructions first, then
sudo apt install libglfw3-dev libfreetype-dev libharfbuzz-dev

# build and run
git clone https://github.com/arshnah/gungnir
cd gungnir
odin build src -out:gungnir
./gungnir

tests

odin test src/term

No GLFW/OpenGL dependency in that package, it's the VT parser and protocol handling in isolation, which is what makes the suite runnable without a display.

this site

Served by a small HTTP/1.1 server written in Odin, straight on top of core:net sockets, no framework. Every connection gets its own thread via core:thread, so one slow client can't stall the rest. One binary, no runtime dependencies.