Console (kmscon)

By default marchyo configures the in-kernel virtual console — the gettys on tty1–ttyN — with the Jylhis palette and a scaled Terminus bitmap font (modules/nixos/console.nix). That console is limited to bitmap fonts and a small scrollback.

marchyo.console.kmscon swaps those gettys for kmscon, a userspace KMS/DRM terminal that renders the TTY with a real font engine. It brings TrueType/Nerd-font rendering, full Unicode, and a large configurable scrollback to the console. It is opt-in because enabling it suppresses getty@ and takes over the virtual terminals.

marchyo.console.kmscon.enable = true;

When enabled, marchyo wires kmscon into the knobs it already owns:

Keyboard — the XKB layout from marchyo.keyboard is injected via kmscon’s useXkbConfig, so the console keymap matches the graphical session.
Font size — derived from marchyo.theme.fontScale, the single multiplier that scales every other text surface (a 12 pt base × fontScale).
Font family — defaults to the Jylhis mono role (BlexMono Nerd Font), already installed by the fonts module.

Option	Type	Default	Description
`marchyo.console.kmscon.enable`	`bool`	`false`	Replace the in-kernel VT gettys with kmscon
`marchyo.console.kmscon.fontName`	`str`	`"BlexMono Nerd Font"`	Monospace family kmscon renders with (resolved via fontconfig)
`marchyo.console.kmscon.scrollbackLines`	`positive int`	`10000`	Scrollback buffer size in lines (`sb-size`)
`marchyo.console.kmscon.hwaccel`	`bool`	`false`	Use OpenGL rendering; turns on `hardware.graphics.enable`
`marchyo.console.kmscon.extraConfig`	`attrs of bool/int/str`	`{ }`	Extra `kmscon.conf` keys merged into `services.kmscon.config`

Anything kmscon supports but marchyo does not expose directly goes through extraConfig. Booleans render as key / no-key; see kmscon.conf(5) for the full list.

marchyo.console.kmscon = {
  enable = true;
  fontName = "JetBrainsMono Nerd Font";
  scrollbackLines = 50000;
  hwaccel = true;
  extraConfig = {
    palette = "solarized";
    font-dpi = 96;
  };
};