diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 5c52255..61c9e6e 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -10,10 +10,6 @@ jobs:
     runs-on: macos-latest
     steps:
       - uses: actions/checkout@v7
-      - run: |
-          echo "PATH=$PATH"
-          ls -l /opt/homebrew/bin/fish /opt/homebrew/bin/pwsh /usr/local/bin/fish /usr/local/bin/pwsh || true
-          /bin/zsh -lc 'echo "login PATH=$PATH"; command -v brew fish pwsh' || true
       - uses: dtolnay/rust-toolchain@master
         with:
           toolchain: "1.95"
@@ -30,18 +26,6 @@ jobs:
     runs-on: ${{ matrix.os }}
     steps:
       - uses: actions/checkout@v7
-      - if: runner.os == 'Windows'
-        shell: powershell
-        run: |
-          $env:PATH -split ';'
-          "CARGO_HOME=$env:CARGO_HOME RUSTUP_HOME=$env:RUSTUP_HOME USERPROFILE=$env:USERPROFILE"
-          Get-Command rustup, rustc, cargo, pwsh, bash -All -ErrorAction SilentlyContinue | Format-Table -AutoSize Name, Source
-          Get-ChildItem "$env:USERPROFILE\.cargo\bin" -ErrorAction SilentlyContinue | Select-Object -ExpandProperty Name
-      - if: runner.os == 'Windows'
-        shell: bash
-        run: |
-          echo "PATH=$PATH"
-          command -v rustup rustc cargo || true
       - uses: dtolnay/rust-toolchain@master
         with:
           toolchain: "1.95"
@@ -51,7 +35,9 @@ jobs:
       # The Linux job container runs as root, which ignores the file permissions the tests check.
       - if: runner.os == 'Linux'
         run: |
-          apt-get update && apt-get install -y zsh fish xvfb
+          apt-get update && apt-get install -y --no-install-recommends pkg-config libwayland-dev \
+            libxkbcommon-dev libxkbcommon-x11-dev libxcb1-dev libx11-xcb-dev libfontconfig-dev \
+            libfreetype-dev zsh fish xvfb
           useradd --create-home ci
           chmod o+x "$HOME"
           chown -R ci "$GITHUB_WORKSPACE" "$HOME/.cargo" "$HOME/.rustup"
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..fe12f53
--- /dev/null
+++ b/README.md
@@ -0,0 +1,67 @@
+# ELYTerminal
+
+A terminal for macOS, Windows and Linux, in Rust on GPUI and Ely components. Sessions sit on the left, the terminal in the middle, Git or Files on the right. Every setting has a control in the settings window.
+
+## Build and run
+
+Rust 1.95.
+
+```sh
+cargo run --release
+```
+
+On Linux, install the libraries gpui links first. On Debian and Ubuntu:
+
+```sh
+sudo apt-get install pkg-config libwayland-dev libxkbcommon-dev libxkbcommon-x11-dev \
+  libxcb1-dev libx11-xcb-dev libfontconfig-dev libfreetype-dev
+```
+
+The app writes its log to stderr. `RUST_LOG=elyterminal=debug` writes more; `trace` logs each paint.
+
+## What it does
+
+- The terminal runs on `alacritty_terminal`: 256 colors and truecolor, bold, dim, italic, five underline styles, wide characters and combining marks. Box drawing, block elements and powerline shapes are drawn as geometry, so lines join across cells. Keys follow xterm and the kitty keyboard protocol; input methods compose at the cursor; programs can track the mouse; pastes are bracketed when a program asks; OSC 8 and plain links open with the link press below; find searches the scrollback.
+- Shell integration for zsh, bash, fish and PowerShell: each prompt reports its folder and title.
+- Sessions: new, close and switch. A bell marks a hidden session's row and makes no sound.
+- Files shows the session's folder as a tree with Git's marks.
+- Git shows the branch, stages, unstages, discards, commits, lists recent commits and opens diffs, all through the `git` command line.
+- Themes: Ely Dark, Ely Light, Catppuccin Mocha, Macchiato, Frappé and Latte, Tokyo Night, Dracula, Nord, Gruvbox Dark, Rosé Pine, Solarized Light, One Light and Kanagawa Wave. A second theme can take over while the system is dark.
+- Background opacity and blur: NSVisualEffectView on macOS, acrylic on Windows, `ext_background_effect_v1` or `org_kde_kwin_blur` on Wayland, `_KDE_NET_WM_BLUR_BEHIND_REGION` on X11, which KWin reads.
+
+## Keys
+
+| | macOS | Windows and Linux |
+|---|---|---|
+| New session | Cmd-T | Ctrl-Shift-T |
+| Close session | Cmd-W | Ctrl-Shift-W |
+| Session 1 to 8, last | Cmd-1 to Cmd-8, Cmd-9 | Alt-1 to Alt-8, Alt-9 |
+| Next, previous session | Ctrl-Tab, Ctrl-Shift-Tab | Ctrl-Tab, Ctrl-Shift-Tab |
+| Sessions column | Cmd-B | Ctrl-Shift-B |
+| Right column | Cmd-Alt-B | Ctrl-Shift-Alt-B |
+| Copy, paste | Cmd-C, Cmd-V | Ctrl-Shift-C, Ctrl-Shift-V |
+| Select all | Cmd-A | Ctrl-Shift-A |
+| Find | Cmd-F | Ctrl-Shift-F |
+| Bigger, smaller, reset size | Cmd-=, Cmd-minus, Cmd-0 | Ctrl-=, Ctrl-minus, Ctrl-0 |
+| Open a link | Cmd-press | Ctrl-press |
+| Settings | Cmd-, | Ctrl-, |
+| Minimize | Cmd-M | |
+| Quit | Cmd-Q | Ctrl-Shift-Q |
+
+## Settings
+
+The settings window saves each change at once to `settings.json` in the platform's config folder:
+
+- macOS: `~/Library/Application Support/ELYTerminal/settings.json`
+- Linux: `$XDG_CONFIG_HOME/ELYTerminal/settings.json`, else `~/.config/ELYTerminal/settings.json`
+- Windows: `%APPDATA%\ELYTerminal\settings.json`
+
+A file that does not parse, or holds a value out of range, stops the start with an error naming the file and the field. The app never overwrites it.
+
+## Development
+
+`scripts/check.sh` runs fmt, clippy, the tests and the 500-line rule. `AGENTS.md` lists the rest: the layout, the decisions and the tools.
+
+## License
+
+MIT, in `LICENSE`. Box drawing and key encoding follow Ghostty's code, MIT, in `LICENSE-GHOSTTY`. The theme files come from iTerm2-Color-Schemes, MIT, with its license in `assets/themes`. JetBrains Mono and its Nerd Font build are under the SIL Open Font License, in `assets/fonts`.
diff --git a/src/lib.rs b/src/lib.rs
index 5400431..8fbdb5a 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -6,7 +6,7 @@ pub mod menus;
 pub mod sessions;
 pub mod settings;
 pub mod term;
-#[cfg(test)]
+#[cfg(all(test, unix))]
 mod testlog;
 pub mod themes;
 pub mod workspace;
diff --git a/tasks/acceptance.md b/tasks/acceptance.md
new file mode 100644
index 0000000..30ea717
--- /dev/null
+++ b/tasks/acceptance.md
@@ -0,0 +1,143 @@
+# Acceptance
+
+`PRD.md` line by line, as of T23. Status: **Pass** when a test, a run or a review shows it; **Partial** when part of it was shown; **Open** when nothing has shown it yet. Reviews are in `tasks/reviews.md`; tests are named by module (`cargo test -- MODULE`).
+
+What no check reached: no build has run on Windows; no real KWin or Wayland desktop drew the blur. On 2026-10-15 macOS gave `shot` blank pictures for old and new builds alike, so that day's macOS checks read the app's log.
+
+## 1. Product
+
+| PRD line | Task | Evidence | Status |
+|---|---|---|---|
+| One window: sessions left, terminal middle, Git or Files right | T11 | T11 review; a real X11 window shows the terminal and the right column | Pass |
+| Every setting has a control in the settings window | T16–T18 | 17 of the 20 fields have a row; `show_sessions`, `show_panel` and `panel` are the main window's toggles and switch, which §6 keeps in the file | Pass |
+| Silent: no sound, bell, notification, update check, telemetry, tip or onboarding | T10, T12 | a bell is logged and marks a hidden row; the code holds no network call or notification | Pass |
+| Clean: no subtitle, tagline, logging option, status bar or badge without state | T11–T18 | reviews of the layout and settings tasks | Pass |
+| Built-in themes, each with a preview, Catppuccin among them; a theme colors terminal and chrome | T03, T17 | `themes::tests`; T17 review | Pass |
+| The background blurs on macOS, Windows, Wayland and X11 | T19–T21 | see §11 | Partial |
+
+## 2. Foundation
+
+| PRD line | Task | Evidence | Status |
+|---|---|---|---|
+| One binary crate `elyterminal`, edition 2024, Rust 1.95 | T01 | `Cargo.toml` | Pass |
+| Ely by pinned rev; gpui and gpui_platform from `gpui-pre` at Ely's version | T01 | `Cargo.toml`: Ely `a2cb531`, `gpui-pre` `=0.3.8` | Pass |
+| `alacritty_terminal` 0.26 | T04 | `=0.26.0` | Pass |
+| Logs through `log` to stderr, `RUST_LOG` sets the level, no log setting | T01 | `src/main.rs`; no such field in `Settings` | Pass |
+| CI on Gitea Actions: macOS builds, tests and lints; Ubuntu and Windows build and test | T01, T23 | `.github/workflows/ci.yml`; see §13 | Open |
+| Private repo; no credential in any file or commit | T01 | each review scans the tree and every reachable object: 0 hits (T22: 398 objects) | Pass |
+
+## 3. Settings model and storage
+
+| PRD line | Task | Evidence | Status |
+|---|---|---|---|
+| One `settings.json` in `dirs::config_dir()/ELYTerminal` | T02 | `settings::store` tests | Pass |
+| Every field has a default; a missing file or field means its default | T02 | `settings::tests`, `settings::store` tests | Pass |
+| A bad file or value stops the start, naming file and field; never overwritten | T02 | `a_bad_file_is_an_error_naming_it`, `a_bad_value_is_an_error_naming_the_field` | Pass |
+| Temp file in the same folder, then rename; one writer | T02 | T02 rounds 1–2 | Pass |
+
+## 4. Themes
+
+| PRD line | Task | Evidence | Status |
+|---|---|---|---|
+| The 14 built-in themes | T03 | `assets/themes`, byte for byte with upstream `21f281d`; Ely's two | Pass |
+| Background, foreground, cursor, cursor text, selection, 16 ANSI from upstream | T03 | `themes::tests` | Pass |
+| A theme maps onto Ely's `Palette` through `Theme::set_palette` | T03, T19 | `the_chrome_wears_the_theme` | Pass |
+| One theme, or a second for dark mode | T17 | T17 review | Pass |
+
+## 5. Terminal engine
+
+| PRD line | Task | Evidence | Status |
+|---|---|---|---|
+| PTY through alacritty's event loop; OSC 7 scanned on the reader | T04 | `term::pty`, `term::tap` tests; round 3 failed at the cap, its fix stands on a red-green test | Pass |
+| Shell integration for zsh, bash, fish, PowerShell; a shell without it reports nothing and the panels say so | T05 | `term::shell` tests on macOS and Linux | Pass |
+| Colors, styles, five underlines, wide characters, combining marks | T06 | `term::frame`, `term::ink`, `term::paint` tests | Pass |
+| Box drawing, blocks and powerline shapes as geometry | T07 | `term::boxes` tests | Pass |
+| JetBrains Mono, any installed font, Nerd Font icons | T06, T17 | `tests/fonts.rs` | Pass |
+| Cursor shapes, blink by setting and DECSCUSR, hollow unfocused | T06 | T06 review | Pass |
+| xterm keys, cursor mode, Option as Alt, kitty protocol, keypad | T08 | `term::keys` tests | Pass |
+| IME: marked text at the cursor, commits to the program | T08 | T08 review | Pass |
+| Selection by character, word, line; Shift extends; mouse reporting; wheel | T09 | `term::mouse`, `term::tap` tests | Pass |
+| Copy, paste, bracketed paste, copy on select, OSC 52 | T09 | T09 review | Pass |
+| OSC 8 and plain links on Cmd-press, Ctrl-press off macOS | T09 | `term::links` tests | Pass |
+| Focus reporting, title, scrollback limit, find | T10 | `term::find` tests; round 3 failed at the cap, its fix stands on a red-green test | Pass |
+| A bell makes no sound; the row marks it | T10, T12 | T12 review | Pass |
+
+## 6. Main window and layout
+
+| PRD line | Task | Evidence | Status |
+|---|---|---|---|
+| `ColumnShell` with three columns; blur when the setting is on | T11, T19 | `shot` names a `BlurredView` under the window | Pass |
+| Columns toggle and keep their state | T11 | Cmd-B, the app active, saved `show_sessions` false; Ctrl-Shift-B hid the sessions on a real X11 window | Pass |
+| The title shows the session's title, nothing else | T11 | log: "the title is", per session shown | Pass |
+| The title bar is transparent | T11, T19 | T19 review | Pass |
+
+## 7. Sessions panel
+
+| PRD line | Task | Evidence | Status |
+|---|---|---|---|
+| Rows: title, then the folder, home as `~` | T12 | `sessions::tests` | Pass |
+| New (+, Cmd-T), close (×, Cmd-W), select (press, Cmd-1…9, Ctrl-Tab) | T12 | 2026-10-15: + opened session 2, a press showed session 1 again | Pass |
+| A program's end closes its row; the last row closes the window | T12 | T12 review | Pass |
+| A bell in a hidden session marks its row | T12 | T12 review | Pass |
+
+## 8. Right panel: Files
+
+| PRD line | Task | Evidence | Status |
+|---|---|---|---|
+| Git and Files switch | T13 | T13 review | Pass |
+| The session's folder as a tree, folders first, Git colors | T13 | `files::tests` | Pass |
+| Double press opens a folder, or a file in the default app | T13 | T13 review, with a logging `open` stub | Pass |
+| Reloads on a new folder and at each prompt | T13 | log: "the tree shows", per folder reported | Pass |
+
+## 9. Right panel: Git
+
+| PRD line | Task | Evidence | Status |
+|---|---|---|---|
+| Through the `git` command line | T14 | `git::tests` on temp repos | Pass |
+| Branch, staged and unstaged, commit field and Commit, recent commits | T15 | `git::panel` tests; T15 review | Pass |
+| Stage and unstage; a press opens the diff in `DiffViewer` | T15 | T15 review | Pass |
+| Discard asks first | T15 | T15 review, in temp repos | Pass |
+| Outside a repository it says so; a failed command shows its error | T15 | "Not a Git repository." on a real X11 window | Pass |
+| Reloads at each prompt and on a folder change | T15 | log: "git panel: shows", per folder | Pass |
+
+## 10. Settings window
+
+| PRD line | Task | Evidence | Status |
+|---|---|---|---|
+| Cmd-, opens it; categories left, rows right; changes apply at once and save | T16 | T16 review | Pass |
+| General: Shell, Start in | T16 | `settings::tests` | Pass |
+| Appearance: theme grids, dark theme, font, size, line height, ligatures, cursor and preview, opacity, blur, padding | T17 | T17 review | Pass |
+| Terminal: scrollback, Option as Alt (macOS), copy on select | T18 | T18 review | Pass |
+
+## 11. Background blur
+
+| PRD line | Task | Evidence | Status |
+|---|---|---|---|
+| macOS: `Blurred` (NSVisualEffectView) | T19 | `BlurredView` comes and goes with the settings | Pass |
+| Windows: `Blurred` (acrylic) | T19 | the same gpui call; no Windows build has run | Open |
+| Wayland: `ext_background_effect_v1` beside gpui's `org_kde_kwin_blur` | T20 | `blur::wayland` tests on a `wayland-server` compositor; no real compositor | Partial |
+| X11: `_KDE_NET_WM_BLUR_BEHIND_REGION`, removed when blur turns off | T21 | `blur::x11` test on Xvfb; the property on a real xfwm4 window; KWin not run | Partial |
+| Neither protocol: transparency without blur; the log names the path | T20, T21 | the log lines in `src/blur` | Pass |
+
+## 12. Menus and shortcuts
+
+| PRD line | Task | Evidence | Status |
+|---|---|---|---|
+| The macOS menu bar | T22 | `shot` lists every item with its key | Pass |
+| The same shortcuts off macOS, Ctrl-Shift where they collide | T22 | xdotool on a real X11 window: select all, size, toggle, find, quit | Pass |
+
+## 13. Acceptance
+
+| PRD line | Evidence | Status |
+|---|---|---|
+| Each task ticked with a passing review | T01–T22 ticked; T04 and T10 reached the three-round cap without a passing round; T23 open | Partial |
+| `scripts/check.sh` passes | macOS: 135 tests, clippy, fmt, 500 lines; Linux in Colima: 138 tests, clippy | Pass |
+| CI green on macOS, Ubuntu and Windows | see the CI notes below | Open |
+
+## CI notes
+
+As probed on 2026-10-15, each job fails on its runner, not on the code:
+
+- macOS, on the Mac mini runner: Homebrew is on the PATH, but fish and PowerShell are not installed, so `fish_loads_its_script_and_restores_its_data_dirs` and `powershell_reports_its_folder_byte_for_byte_and_keeps_the_status` fail, as they should without their shells.
+- Windows, on its runner: `C:\Users\zhang\.cargo\bin` holds `rustup.exe` alone, without the `cargo.exe` and `rustc.exe` proxies, so the toolchain step stops at `rustc: command not found`. `cargo clippy --target x86_64-pc-windows-msvc --all-targets -D warnings` passes on macOS, with a stand-in for the MSVC assembler and `llvm-rc`; no Windows test has run.
+- Ubuntu: no runner carries the `ubuntu-24.04` label, so the job never starts. The tests pass in a Linux container (`scripts/linux.sh test --locked`).