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## What are the changes about? TL;DR:  Slaps the entire LuaJIT runtime onto Ly, allowing for the creation of custom dynamic animations like GameOfLife, ColorWave, Doom, etc. This PR adds the [ziglua](https://github.com/natecraddock/ziglua?ref=zig-0.16) dependency for its zig bindings and considerable buildtime config (mainly lua version selection). ### Example <video src="/attachments/3f91cf72-ae24-459c-8ef6-099f71e866fd" title="Screencast_20260519_172320" controls></video> ```lua ly.frame_delay = 5 local timer = 0 local clock = os.clock() local clock_diff = 0 function draw() timer = timer + 1 byte = string.byte(' ') clock_diff = os.clock() - clock clock = os.clock() timer = timer + clock_diff for x = 0, ly.width-1 do for y = 0, ly.height-1 do local xc = 0xFF if x < 255 then xc = ((x + math.floor(timer / 2)) * 3) % 255 else xc = 0 end local yc = 0xFF if y < 255 then yc = ((y) * 3) % 255 else yc = 0 end ly.putCell(byte, xc, bit.bor(xc, yc), x, y) end end end ``` ### The API The API that Ly gives to the user is minimal. A table is globally available, named `ly`, which provides the following: | Member | Purpose | |---------|---------| | `ly.width` & `ly.height` | Respective Width/Height from the `TerminalBuffer` | | `ly.putCell(byte, fg, bg, x, y)` | Literally `Cell.init(byte, fg, bg).put(x, y)`.| | `ly.clock()` | The current real-time, in microseconds. | ### Error Handling On a Lua Error, Ly won't quit but will instead paint the entire background red. The lua error in question can be found in the Ly log file and on-screen. ```log 2026-05-19 16:13:40 [err/Lua] Error (Cannot call draw()): attempt to call a nil value 2026-05-19 11:05:51 [err/Lua] Lua Error: ...dsammyt/programming/probe/ly/scratch/testConfig/test.lua:30: bad argument #1 to 'ipairs' (table expected, got number) ``` ## Pre-requisites - [X] I have tested & confirmed the changes work locally - [X] I have run `zig fmt` throughout my changes Reviewed-on: https://codeberg.org/fairyglade/ly/pulls/1001 Reviewed-by: AnErrupTion <anerruption+codeberg@disroot.org>