Compare the hash
If the printed hash differs from the one on the build, don't run it.
# Windows
certutil -hashfile "REX Setup 0.3.6.exe" SHA256
# Linux / macOS
sha256sum rex_0.3.6_amd64.deb
Download
Get REX on your machine.
Every build lists its SHA-256 — check it before you run it. That's true of software from anyone, including me. 14 days free, no card.
You're on a phone. REX is a desktop agent for Windows, Linux and
(soon) macOS. Send this page to your computer and install it there.
Loading builds…Reading the release manifest.
Verify and install
Check what you downloaded.
Install with apt
Use apt, not dpkg -i — it pulls the dependencies for you.
sudo apt install ./rex_0.3.6_amd64.deb
rex
# desktop tools need xdotool (X11)
# or ydotool under Wayland
First run
Three steps and you're working.
STEP 01
Add a provider
Settings → Providers. Paste a key — it's sealed in the OS credential store. Or skip it: if Ollama is running, REX finds it on its own.
STEP 02
Open a project
New session, then pick a folder. Every file and shell operation is scoped to it, and the status bar shows which folder is live.
STEP 03
Ask for something real
"Find where we verify JWTs and fix anything unsafe." REX searches, reads, proposes a diff — and waits for you.
Releases