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Forkbench vs Alacritty
Alacritty is a minimal, GPU-accelerated, cross-platform terminal written in Rust that deliberately omits tabs, splits, ligatures and inline images.
Alacritty has one of the clearest design positions in software: render text as fast as possible and leave everything else to other programs. No tabs, no splits, no configuration beyond a TOML file. If you want more than one thing on screen you run tmux, and that is the intended answer, not a gap. Forkbench takes the opposite position for a specific reason. When most of what runs in your terminal is coding agents, the everything-else is the actual work.
| Forkbench | Alacritty | |
|---|---|---|
| Real login shell | Yes, a generic PTY per tab | Yes |
| Platform | macOS 13+ only | macOS, Linux, Windows, BSD |
| Tabs and splits | Both, grouped into Threads | None by design, use tmux |
| Design philosophy | A workspace around the shell | Render text, nothing else |
| Built for coding agents | Yes, the whole design | No |
| Task board that survives a reboot | Yes, per Thread | No |
| Secrets handling | Vault (Pro), sealed on your Mac | Inherits the shell environment |
| Remote and multi-Mac | Yes (Pro) | No |
| Open source | Closed | Yes |
| Price | Free; Pro €30/mo; Team $30/seat, dropping to $20 at scale | Free |
| Credentials an agent can use but never read | Vault (Pro) holds it, and it goes to the one command that needs it, so it never reaches the prompt, the command line or the transcript. A seatbelt, not a guarantee: an agent you authorise for a command could still print what it was handed. | Not a terminal feature. A key in your shell or in a .env is readable by anything you run, agents included. |
Where Alacritty is strong
- Extremely fast and extremely simple, with almost no surface to learn.
- Free, open source, and cross-platform.
- The minimal philosophy is a genuine feature, not an omission.
- Composes cleanly with tmux, which many developers prefer to a built-in multiplexer.
Where Forkbench differs
- A key in Vault (Pro) can be used by an agent that never sees the value.
- Folders the macOS kernel enforces. A Thread can be locked to the folders the job is about, applied as each shell starts and inherited by every process it spawns, so an agent cannot read or write outside them. Builds still run and the network is untouched.
- Tabs and workspaces without a multiplexer. A Thread groups the tabs, folder, notes and secrets for one piece of work.
- tmux still works inside a Forkbench tab if you want it. Nothing about your setup has to change.
- A task board agents write to and claim from, which survives closing the pane and rebooting the Mac.
- A live git panel, one-click worktrees, scheduled prompts, and remote access from the web or your phone.
The bottom line
Alacritty plus tmux is a legitimate agent setup and plenty of people run it happily. What it will not do is tell you what the agent in pane three decided an hour ago, or keep a key out of its context. If those two things are your daily friction, Forkbench solves them without asking you to give up tmux, which runs inside a Forkbench tab exactly as it does now.
Keep reading
- How keys, notes and boards are actually protected, including where each defence stops.
- Keeping API keys away from AI coding agents
- Every comparison
Comparison based on publicly available information as of mid-2026. Spot something out of date? Tell us.