Signboard

Signboard is a local-first desktop kanban app that stores your lists as directories and cards as Markdown files on disk.

Signboard is free for personal use. If you are using Signboard for your work it would be appreciated if you purchase a commercial license to sponsor future development. See the app's "Sponsor" button.

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✨ Highlights

• 📂 Cards saved as Markdown files
• 💎 Full Obsidian support
• 🖌️ Color scheme per board (several to choose from!)
• 🌙 Light and dark mode variants for all color schemes
• 🏷 Custom labels per board
• 🗓 Card due dates and task list item due dates
• 📋 Kanban and Table board views, including card age columns and sorting in Table
• 🗂 Planner overlay for actionable dated work across open boards
• 📆 Optional local External Published Calendar feed for calendar app subscriptions
• 🔮 Obsidian-friendly properties, Bases generation, linked objects, linked-object counts, and signboard:// card links
• 🎨 Board-colored source pills in Planner date views
• ✅ Completed-list workflow settings that preserve due-date history
• ✅ Progress counters on cards
• 🔎 Live search
• 🗄️ Linked files and URLs on cards
• 🧲 Drag-and-drop card movement
• ⚡ Unlimited open boards with overflow tabs and a quick switcher
• ⌨️ Keyboard shortcuts
• ♿ Keyboard, screen reader, reduced-motion, and forced-colors improvements
• 🤖 MCP server
• 💻 CLI

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Installation

1. Go to the Releases page.
2. On the latest release, use the curated download links in the release body:
   • Download for macOS (Universal)
   • Download for Windows
   • Linux packages grouped by package type with explicit x64 and ARM64 labels

For standard releases, Signboard intentionally promotes a smaller public download set:

• macOS: universal build
• Windows: single installer
• Linux: separate x64 and ARM64 packages

Documentation

• Documentation hub
• Using Signboard
• Signboard CLI
• MCP Server

Keyboard Shortcuts

On macOS, use Cmd. On Windows and Linux, use Ctrl.

• Cmd/Ctrl + /: open keyboard shortcuts
• Cmd/Ctrl + K: switch between currently open boards
• Cmd/Ctrl + N: quick add a card to any open board
• Cmd/Ctrl + Shift + N: create a list
• Cmd/Ctrl + 1: return to Kanban and close Planner
• Cmd/Ctrl + Option/Alt + 1: switch to Table and close Planner
• Cmd/Ctrl + 2: open Planner Calendar for all open boards
• Cmd/Ctrl + 3: open Planner This Week for all open boards
• Cmd/Ctrl + Shift + P: open or close Planner
• Cmd/Ctrl + 4: open Planner Day for all open boards
• Cmd/Ctrl + 5: open Planner Agenda for all open boards
• Cmd/Ctrl + Option/Alt + 2: open Planner Calendar for the current board
• Cmd/Ctrl + Option/Alt + 3: open Planner This Week for the current board
• Cmd/Ctrl + Option/Alt + 4: open Planner Day for the current board
• Cmd/Ctrl + Option/Alt + 5: open Planner Agenda for the current board
• Cmd/Ctrl + ,: open Settings
• Cmd/Ctrl + Shift + D: toggle light and dark mode
• Cmd + Control + Shift + C on macOS, Ctrl + Alt + Shift + C elsewhere: cycle board color schemes
• Cmd/Ctrl + Shift + [: move the open card to the previous list
• Cmd/Ctrl + Shift + ]: move the open card to the next list
• Cmd/Ctrl + Option/Alt + Shift + Backspace: archive the open card
• Cmd/Ctrl + Shift + A: open Archive
• Cmd/Ctrl + F: focus board search or Planner search
• Esc: close open modals

In board search, Planner search, and archive search, Enter or Arrow Down moves from the search field to the first visible result, arrow keys move between visible results, and Enter or Space opens or selects the focused result.

Board tabs, list actions, label/filter popovers, and Settings sections support arrow-key navigation. Home and End jump to the edges, Esc closes popovers, and Delete / Backspace closes a focused board tab.

When a card is open, workspace-level shortcuts such as create, board switcher, Planner/view switching, Settings, Archive, and search close the card first. Card-specific shortcuts such as moving or archiving the open card still act on that card. In the Quick Add card modal, choose the board and list before creating the card. Shift + Enter creates the card, opens it immediately, and focuses the notes field. App Settings can also register an optional global Quick Add shortcut that works while Signboard is open.

You can also open the shortcut helper from Help > Keyboard Shortcuts.

Editable fields, including the card title and body editor, support the native right-click text editing menu for cut, copy, paste, delete, and select all.

Raw http://, https://, and www. URLs typed in the card body are visually marked in the editor. Use the inline open-link control or Cmd/Ctrl-click the URL to open it in your default browser without changing the card's Markdown.

Cards, list actions, and dialogs are keyboard-operable, with screen-reader status announcements for common actions. Focus indicators appear for keyboard navigation without adding persistent outlines to the card editor for pointer users.

🤖 MCP Server

Signboard includes a built-in MCP server so agents can interact with local boards.

• Dedicated instructions: MCP_README.md
• To copy config: Help -> Copy MCP Config
• MCP uses both explicit allowed roots and Signboard's desktop trusted board roots for board lookup.
• Optional agent skill: skills/signboard-mcp/SKILL.md

💻 CLI

Signboard includes a terminal CLI for direct board management without going through MCP.

• Full guide: docs/signboard-cli.md

• In the desktop app on macOS/Linux: Help -> Install Signboard CLI

• Use signboard use /Path/to/Board once to remember the active board for later commands

• Use signboard boards create /Path/to/NewBoard --use to create and select a new board from the terminal

• The installed signboard wrapper runs the bundled CLI in Electron's Node mode, avoiding desktop app startup for terminal commands.

Examples:

# Select a board once
signboard use /Path/to/Board

# Create a board
signboard boards create /Path/to/NewBoard --use

# Lists
signboard lists
signboard lists create "Waiting"
signboard lists rename "Waiting" "Blocked"

# Cards
signboard cards --due next:7
signboard cards "To do"
signboard cards --label Urgent --search launch
signboard cards create --list "To do" --title "Ship release notes" --due 2026-03-20
signboard cards edit --card ab123 --due none --move-to Doing
signboard cards duplicate --card ab123 --list Leads --remove-label Template --dry-run --json
signboard cards create --from-card ab123 --list Leads --title "New lead"
signboard cards notes add --card ab123 --text "Emailed follow-up" --timestamp
signboard cards read --list Doing --card ab123

# Imports
signboard import trello --file ~/Downloads/trello-export.json
signboard import obsidian --source ~/Vault/Kanban.md --source ~/Vault/Boards/
signboard import tasksmd --source ~/TasksWorkspace/tasks/Project-A

# Or run through the packaged app executable
/Applications/Signboard.app/Contents/MacOS/Signboard use /Path/to/Board
/Applications/Signboard.app/Contents/MacOS/Signboard cards --due next:7

Interesting card listing filters:

• --due today
• --due tomorrow
• --due overdue
• --due this-week
• --due next:7 / next:14 / next:30
• --due-source card|task|any
• --label <name-or-id> (repeatable)
• --label-mode any|all
• --search <query>
• --sort list|due|title|updated|updated-oldest|updated-newest|created-oldest|created-newest
• --json for scripting output

Import options:

• signboard import trello --file <export.json> [--board <path>] [--json]
• signboard import obsidian --source <path> [--source <path> ...] [--board <path>] [--json]
• signboard import tasksmd --source <path> [--board <path>] [--json]

Obsidian Integration

Signboard boards can live inside an Obsidian vault. A good layout is Vault/Project/Signboard/<Board Name>/; avoid making a board a nested Obsidian vault with its own .obsidian folder. You can move an existing board into a vault with Settings > General > Move Board.

If the board is inside a detected vault, the card's Open With menu shows Obsidian actions for opening the card and copying an Obsidian URI.

Use the paperclip control next to labels to link Obsidian notes, local files, folders, web URLs, app deep links, and signboard:// links. You can also drag local files onto the open card editor to link them to that card.

Inside a vault, Signboard automatically creates Signboard Board.base for Obsidian Bases and keeps it current while it is still Signboard-managed. If you customize the Base in Obsidian, Signboard leaves it alone until you choose Settings > Obsidian > Generate Base again.

An optional desktop-only Obsidian companion plugin lives in obsidian-plugin/. Enable it to open/copy Signboard links, attach active Obsidian notes to Signboard cards, handle obsidian://signboard?cardId=..., and right-click a folder to Create Signboard.

Example task checklist syntax:

- [ ] Draft update
- [x ] (due: 2026-03-20) Send proposal
- [ X] Confirm scope
- [ x ] Share notes

🔄 Automatic Updates

• The Signboard app can check for updates automatically.
• You can manually check any time from Check for Updates...:
  • macOS: Signboard app menu
  • Windows/Linux: Help menu

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🛠 Development

git clone https://github.com/cdevroe/signboard.git
cd signboard
npm install
npm start

Tests

npm run test:frontmatter
npm run test:board-labels
npm run test:app-settings
npm run test:board-card-metadata
npm run test:due-notifications
npm run test:task-list
npm run test:obsidian-integration
npm run test:mcp
npm run test:cli
npm run test:cli-install
npm run test:desktop-cli
npm run test:card-ordering
npm run test:board-views
npm run test:card-timestamps
npm run test:timestamp
npm run test:external-calendar
npm run test:archive
npm run test:playwright
npm run test:import-trello
npm run test:import-obsidian
npm run test:import-tasksmd
npm run test:obsidian-plugin
npm run release:verify

Playwright Electron tests do not explicitly bring the Signboard window to the foreground by default. Set SIGNBOARD_PLAYWRIGHT_FOREGROUND=1 before npm run test:playwright when you want the app focused while debugging.

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📦 Distribution Builds

macOS

# Default public macOS release build
npm run dist:mac

# Optional: specific macOS architectures for troubleshooting
npm run dist:mac:universal
npm run dist:mac:arm64
npm run dist:mac:x64

# Optional: build every macOS variant
npm run dist:mac:all

Windows (NSIS installer)

# Default public Windows release build
npm run dist:win

# Alias for the default Windows release build
npm run dist:win:all

# Optional: specific Windows architectures for troubleshooting
npm run dist:win:x64
npm run dist:win:arm64

Linux (AppImage, deb)

# Specific Linux architecture
npm run dist:linux:x64
npm run dist:linux:arm64

# Build both Linux architectures
npm run dist:linux:all

# Optional: RPM-only builds (requires rpmbuild in PATH)
npm run dist:linux:rpm:x64
npm run dist:linux:rpm:arm64
npm run dist:linux:rpm:all

Build everything

# Public release matrix: macOS universal, Windows installer, Linux x64 + ARM64
npm run dist:all

Notes:

• --publish never is used for local builds so these commands package artifacts without attempting to publish releases.
• Standard public downloads are: macOS universal, one Windows installer, and Linux AppImage/deb builds for x64 and ARM64.
• The GitHub release body should be treated as the curated download surface. Link the public download set there instead of expecting users to interpret the raw asset list.
• Copy .env-sample to .env and fill in your credentials before running signing/notarization builds.
• macOS signing/notarization uses environment variables from .env (APPLE_ID, APPLE_APP_SPECIFIC_PASSWORD, and APPLE_TEAM_ID).

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🤝 Contributing

Contributions in all forms are welcome!

• Report bugs: Open an Issue.
• Suggest features: Open an Issue with the enhancement label.
• Submit fixes or features: Fork the repo, make your changes, and open a Pull Request.

Contribution Guidelines

• Keep PRs focused: one change per PR makes reviews faster.
• Be respectful and constructive in discussions.

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💖 Sponsor the Project

Signboard now includes an in-app sponsorship modal with two options:

• Personal use: free, with an optional tip in any amount
• Commercial use: requested one-time payment

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📜 License

The source code in this repository is licensed under the MIT license.

MIT © 2025-2026 Colin Devroe - https://cdevroe.com

Important clarification:

• The MIT license allows personal and commercial use of the source code.
• The in-app $49 commercial-use payment is currently a sponsorship request and honor-system purchase model for packaged app users.
• The optional personal-use tip is also a sponsorship mechanism, not a separate software license.

Third-Party Notices

My thanks to John Gruber for creating Markdown and to Steph Ango, CEO of Obsidian, for his File over app philosophy.

Signboard includes static versions of the following open source libraries:

• Turndown – MIT License
• OverType - MIT License
• SortableJS – MIT License
• Feather Icons – MIT License
• fDatepicker – MIT License