Platform support

Prevail has two surfaces with different platform stories: the desktop app (native, signed and notarized) and the CLI engine (a single compiled Bun binary per platform).

The desktop app

Platform	Status
macOS arm64 (Apple Silicon)	✅ Signed & notarized
Windows 10/11 (x64)	✅ Signed installer

The app is the recommended way to run Prevail on both macOS and Windows. → Download

The CLI engine

Platform	Status
macOS arm64 (Apple Silicon)	✅ Native binary
macOS x86_64 (Intel)	✅ Native binary
Linux x86_64	✅ Native binary
Linux arm64	✅ Native binary
Windows (native)	❌ Not yet — use the desktop app
Windows (WSL)	✅ Supported

About Windows (CLI)

There’s no native Windows build of the standalone CLI yet. Bun’s Windows support is preview-quality as of the 1.3.x series, and the CLI leans on Bun features (single-binary compile, bun:sqlite, process spawning) that need that support to be solid. On Windows, run the desktop app (which ships a native build) or run the CLI under WSL, where it behaves like Linux.

Terminal requirements

Prevail is a true-color TUI. You need:

• A terminal emulator with UTF-8 and true color (24-bit).
• xterm-256color or better.

Tested and known-good terminals:

• iTerm2
• kitty
• alacritty
• WezTerm
• Ghostty
• GNOME Terminal

Tip

If the ASCII banner or the ConfigBar chips render as boxes or garbled characters, your terminal isn’t in a UTF-8 / true-color mode. Check your TERM (echo $TERM should be xterm-256color or similar) and your terminal’s color settings.

The AI CLIs

Prevail brings no models of its own — it spawns CLIs you’ve installed and logged into, inheriting their auth, MCP servers, and skills. You need at least one of:

CLI	Command	Get it
Claude Code	claude	claude.com/code
Codex	codex	github.com/openai/codex
Antigravity	agy	github.com/google/antigravity-cli
Ollama	ollama	ollama.com

prevail doctor reports which it can see. The more you have installed, the bigger your council — but a single CLI is enough to start.

Runtime footprint

• Binary size: ~95 MB (self-contained — Bun runtime is baked in).
• No runtime dependencies: no Node, no Docker, no daemon required for normal use.
• Disk: your vault plus a small ~/.prevail/ for config, the session DB, and connector data.

Getting help

• Health check: prevail doctor --debug
• Issues & releases: github.com/fru-dev3/prevail-cli
• Changelog: CHANGELOG.md

That’s the full tour. Head back to the introduction or jump into the council.