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Emma Thorpe 10cc6cceed refactor(flake): add user registry and multi-user host support

Separate user identity (data) from the reusable modules, and let a host
declare any number of users instead of exactly one.

- users/registry.nix: per-user identity (name, email, groups, authorized
  and signing keys) as the single source of identity; no user data is
  hardcoded in the modules.
- mkHost takes a `users` set keyed by username; per-user identity is
  injected into each home config via the `identity` module arg
  (extraSpecialArgs is per-host, so it cannot carry per-user data).
- modules/users.nix builds accounts from the registry; modules/ssh.nix no
  longer defines authorized keys (the registry owns them); home/git.nix
  and home/desktop.nix read `identity`; users/emmathorpe/work.nix drops
  its now-redundant git identity override.
- Restructure the tree: users/, home/, modules/, hosts/, lib/ replace the
  former lyrathorpe/ and system/ layout.
- Add standalone homeConfigurations (the portable subset: shell, git,
  editor, claude) and an exported homeModules output for use on machines
  not managed by this flake, or as an input to other flakes.

Behaviour-preserving for existing hosts: lyrathorpe-mbp and
emmathorpe-edaas evaluate to identical derivations; lyrathorpe-t400,
lyrathorpe-macpro31 and lyrathorpe-rpi5 differ only by de-duplicating a
repeated authorized_keys entry. Fixes the SSH authorized-key leak (one
user's key was applied to every account), the hardcoded default git
identity, and the hardcoded EDaaS linger setting.

2026-06-29 12:27:52 +01:00

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Keybindings reference

Every keyboard shortcut configured across this desktop, and where it is defined. Everything here is managed declaratively through Nix — edit the listed file and rebuild, never the generated dotfiles.

Area	Defined in
Sway (compositor)	`sway.nix` `config.keybindings` + `config.modes`, plus the home-manager Sway module's built-in defaults
tmux	`shell.nix` `programs.tmux`
zsh line editor	`shell.nix` `programs.zsh.historySubstringSearch`
Neovim	`editor.nix` `programs.nixvim`
foot (terminal)	foot package defaults — only colours are themed (in `sway.nix`)

Conventions

Super is the Mod4 / logo (Windows/Command) key; Alt is Mod1.
Letter keys are keysyms (the character produced), not physical positions. The keyboard is Dvorak (us/dvorak), so e.g. "Super+s" is whatever key types s in Dvorak.
Shortcuts apply to every Sway host (MBP, T400, Mac Pro); brightness keys are laptop-only, as noted.

Sway

Applications & session

Shortcut	Action
`Super`+`Return`	Open a terminal (foot)
`Super`+`Space`	App launcher (sway-launcher-desktop in a floating foot)
`Super`+`d`	App launcher (same as above; module default)
`Super`+`e`	File manager (nemo)
`Super`+`c`	Clipboard history picker (clipman → fuzzel)
`Super`+`l`	Lock screen (swaylock)
`Super`+`Shift`+`q`	Close the focused window
`Super`+`Shift`+`c`	Reload the Sway config
`Super`+`Shift`+`e`	Exit Sway (asks for confirmation)

Focus

Shortcut	Action
`Super`+`←`/`↓`/`↑`/`→`	Move focus by direction
`Super`+`h`/`j`/`k`	Move focus left / down / up (vim-style)
`Super`+`a`	Focus the parent container
`Super`+`Alt`+`Space`	Toggle focus between tiling and floating

Note: vim focus-right would be Super+l, but that is bound to lock here; use Super+→.

Moving windows

Shortcut	Action
`Super`+`Shift`+`←`/`↓`/`↑`/`→`	Move the window by direction
`Super`+`Shift`+`h`/`j`/`k`/`l`	Move the window left / down / up / right
`Super`+`Shift`+`Space`	Toggle the window floating

Mouse (with Super held): left-drag moves a window, right-drag resizes it.

Layout

Shortcut	Action
`Super`+`b`	Split horizontally
`Super`+`v`	Split vertically
`Super`+`s`	Stacking layout
`Super`+`w`	Tabbed layout
`Super`+`f`	Toggle fullscreen
`Super`+`y`	Layout submenu: `s` stacking · `w` tabbed · `e` toggle split · `Return`/`Esc` exit

The layout submenu's e (toggle split) is the home for that action since Super+e now opens the file manager.

Workspaces

Shortcut	Action
`Super`+`1`…`0`	Switch to workspace 1…10
`Super`+`Shift`+`1`…`0`	Move the window to workspace 1…10
`Super`+`z`	Previous workspace
`Super`+`x`	Next workspace

Scratchpad

Shortcut	Action
`Super`+`Shift`+`-`	Move the window to the scratchpad
`Super`+`-`	Show / cycle the scratchpad

Modes (submenus)

Shortcut	Action
`Super`+`r`	Resize mode: arrow keys resize; `Return`/`Esc` exit
`Super`+`y`	Layout mode (see Layout above)
`Super`+`Shift`+`x`	Power menu: `l` lock · `e` log out · `s` sleep · `r` reboot · `Shift`+`s` shutdown · `Return`/`Esc` exit

Screenshots

Shortcut	Action
`Print`	Select a region → swappy (annotate/save)
`Shift`+`Print`	Focused window → swappy

Audio & media

Shortcut	Action
`XF86AudioRaiseVolume` / `XF86AudioLowerVolume`	Volume ±5% (wpctl)
`XF86AudioMute`	Toggle output mute
`XF86AudioMicMute`	Toggle microphone mute
`XF86AudioPlay`	Play/pause (playerctl)
`XF86AudioNext` / `XF86AudioPrev`	Next / previous track

Brightness — laptops only

Shortcut	Action
`XF86MonBrightnessUp` / `XF86MonBrightnessDown`	Backlight ±5% (brightnessctl)

Present only on portable hosts (T400, MBP); desktops have no internal backlight.

tmux

Prefix is Ctrl+b (default). Copy mode uses vi keys.

Shortcut	Action
`Ctrl`+`b` then `v`	Split into left/right panes
`Ctrl`+`b` then `s`	Split into top/bottom panes
`Ctrl`+`h`/`j`/`k`/`l`	Move between panes — and into/out of vim splits — seamlessly (vim-tmux-navigator, no prefix)
`Alt`+`←`/`→`/`↑`/`↓`	Switch pane by direction (no prefix needed)
`Ctrl`+`b` then `[`	Enter copy mode (then vi motions; `Space`/`Enter` to select/copy)
`Ctrl`+`b` then `z`	Zoom / unzoom the focused pane
`Ctrl`+`b` then `c`	New window
`Ctrl`+`b` then `n` / `p`	Next / previous window
`Ctrl`+`b` then `d`	Detach
`Ctrl`+`b` then `Ctrl`+`s` / `Ctrl`+`r`	Save / restore the session (resurrect; continuum also auto-saves and restores on start)
Mouse	Enabled — click to focus, drag borders, scroll, select

The stock split keys % and " are unbound; use v / s above. Ctrl+b then s is therefore a split, not the session tree.

Sessions persist across reboots (resurrect + continuum). Terminals auto-start tmux; NO_TMUX=1 <terminal> opens a bare shell instead.

foot (terminal)

Only colours are themed; these are foot's default key bindings.

Shortcut	Action
`Ctrl`+`Shift`+`c` / `Ctrl`+`Shift`+`v`	Copy / paste (clipboard)
`Shift`+`Insert`	Paste primary selection
`Ctrl`+`Shift`+`r`	Search scrollback
`Ctrl`+`+` / `Ctrl`+`-` / `Ctrl`+`0`	Font larger / smaller / reset
`Ctrl`+`Shift`+`u`	URL mode (jump to/open links)
`Ctrl`+`Shift`+`n`	Spawn a new terminal
`Shift`+`PageUp` / `Shift`+`PageDown`	Scroll back / forward

Neovim

Leader is Space. Ctrl+h/j/k/l is shared with tmux (see above): it moves across vim splits and tmux panes seamlessly. Everything else is stock vim, plus:

Shortcut	Action
,``,	Toggle the file tree (nvim-tree) — comma pressed twice
`Ctrl`+`h`/`j`/`k`/`l`	Move between vim splits / tmux panes (vim-tmux-navigator)
`<leader>ff`	Find files (telescope)
`<leader>fg`	Live grep (telescope)
`<leader>fb`	Switch buffer (telescope)
`<leader>xx`	Diagnostics list (trouble)
`gc` / `gcc`	Toggle comment (selection / line)
`gd`	Go to definition (LSP)
`gr`	List references (LSP)
`K`	Hover documentation (LSP)
`<leader>rn`	Rename symbol (LSP; `<leader>` is `Space`)
`<leader>ca`	Code action (LSP)

Active only while the completion popup is open (it appears as you type, e.g. file paths):

Shortcut	Action
`Tab` / `Shift`+`Tab`	Select next / previous item
`Ctrl`+`n` / `Ctrl`+`p`	Select next / previous item
`Ctrl`+`Space`	Open the completion menu
`Enter`	Confirm the highlighted item (no auto-select; otherwise a newline)
`Ctrl`+`e`	Dismiss the menu

LSP covers Nix, Lua, Python and Terraform (the work box adds C# and Helm). Files are formatted on save (conform-nvim). :Git opens fugitive; gitsigns shows gutter signs. which-key pops up after <leader> to show the rest.

zsh

Shortcut	Action
`↑` / `↓`	History substring search — type a fragment first, then the arrows cycle matching past commands

Bound for both CSI and SS3 cursor sequences, so it works in foot, iTerm2 and the Linux TTY alike.

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