OttoRice Otto

customization desktop dotfiles glazewm rice ricing theme window-manager windows-terminal yasb

Use this command to install OttoRice with WinGet:

winget install --id=GuiOttoni.OttoRice -e

OttoRice installs complete desktop rice/theme setups on Windows from a JSON manifest, with transactional backup and automatic rollback. Paste a theme repository's URL, review exactly what will change, and OttoRice installs the tiling window manager, status bar, terminal color scheme, wallpaper - even editor themes and Windhawk mods - as one transactional operation you can always undo. Supported apps include GlazeWM, YASB Reborn, Zebar, Windows Terminal, VS Code, Zed, Fastfetch, Flow Launcher, Oh My Posh, and Windhawk mods (Taskbar/Start Menu/Notification Center Styler). If anything fails partway through an install, everything already applied is rolled back automatically.

OttoRice

A Windows desktop rice/theme manager — install complete GlazeWM + YASB + Windows Terminal setups (and more) from a JSON manifest, with transactional backup and automatic rollback.

Think Omarchy or an Arch dotfiles repo, but for Windows: paste a theme repository's URL, review exactly what will change, and OttoRice installs the tiling window manager, status bar, terminal color scheme, wallpaper — even editor themes and Windhawk mods — as one transactional operation you can always undo.

Catppuccin Everywhere example theme

The catppuccin example theme included in this repo

Why

Riced desktops are common on Linux; on Windows, getting there means installing several independent tools by hand and manually editing their configs, with no easy way back. OttoRice turns that into: paste a URL → review a preview → install. If anything fails partway through, everything gets rolled back automatically.

Features

Install from a URL — GitHub repo, a local folder, or a bare rice-manifest.json. A preview shows exactly which apps are affected and which WinGet packages will be installed before you commit to anything.
Transactional pipeline — dependencies → backup → apply → reload, each step shown live (both a written log and a graphical step-by-step status view). Any failure rolls back everything already applied.
Toggle without uninstalling — turn the active theme on/off (or just pause GlazeWM's tiling) without losing anything.
Uninstall cleanly — restores your previous configuration from backup, and only offers to remove WinGet packages when no other installed theme still depends on them.
Backup history — every install creates a session you can restore manually later.

Supported apps

App	What OttoRice does
GlazeWM v3	Overrides `config.yaml`
Komorebi + whkd	Overrides `komorebi.json` + `whkdrc`
YASB Reborn	Overrides `config.yaml` + `styles.css`
Zebar	Overrides its config folder
Windows Terminal	Merges a color scheme in — never touches your existing profiles/shortcuts
Wallpaper	Sets it (and restores the previous one on toggle-off/uninstall)
VS Code, Zed, Fastfetch, Flow Launcher, Oh My Posh	Overrides their settings file
Windhawk mods (Taskbar/Start Menu/Notification Center Styler)	Installs & configures via `windhawk-cli` (2.0+), one UAC prompt for the whole batch

A manifest never supplies file paths, reload commands, or scripts — those all come from an internal whitelist (AppRegistry/SupportedApps.cs). A theme can only declare which supported app to target and what content to apply; where that content lands and how the app gets reloaded is entirely up to OttoRice, not the theme author.

Install

Download the latest installer from the Releases page and run it — no admin rights required, everything is installed under your user profile.

Building a theme

A theme is a Git repository (or a local folder) with a rice-manifest.json at its root:

{
  "schemaVersion": "1.0",
  "themeId": "my-theme",
  "name": "My Theme",
  "author": "you",
  "dependencies": [{ "wingetId": "glzr-io.glazewm", "minVersion": "3.0.0" }],
  "targets": [
    { "app": "glazewm", "action": "override", "source": "configs/glazewm/config.yaml" },
    { "app": "wallpaper", "action": "set", "source": "assets/wallpaper.png" }
  ]
}

See examples/ for four complete reference themes of increasing scope — blackturq (minimal), voidhaze, catppuccin (all nine supported apps, Windhawk mods included), and forestlight (Komorebi + whkd instead of GlazeWM) — each with its own README explaining the format and any gotchas.

Development

dotnet run --project src/OttoRice   # run the app
dotnet test                          # run the test suite

Stack: .NET 10, Avalonia UI 12, CommunityToolkit.Mvvm, Serilog. Vertical-slice architecture (Features/), with AppRegistry/ holding the app whitelist and Common/ holding shared infrastructure (process execution, WinGet, wallpaper, atomic file writes).
Process termination is always restricted to a whitelist and always by specific PID — never a mass kill by process name.

License

MIT