Hi there! I see you deleted the Tweek desktop app because it was freezing, and now when you're trying to reinstall it on your Mac running OS X 10.15.7, you're getting a compatibility error. I’d be happy to help you get this sorted out.

First, could you share a bit more about the exact message it shows when it says it’s not compatible? Also, did you download the app installer directly from Tweek’s official website? Sometimes a mismatch happens if the installer is for a different OS version or architecture.

Meanwhile, here are some steps to try:

1. Confirm macOS Compatibility:
Tweek’s latest desktop app versions may have minimum system requirements that your macOS version (10.15.7 Catalina) needs to meet. Let’s check on Tweek’s website if your version is supported. If the latest version requires a newer macOS, you might consider updating your macOS if possible.

2. Download the Correct Installer:
Make sure you download the macOS version of the app and not a Windows or Linux version mistakenly. The installer should be a .dmg or .pkg file for Mac.

3. Clear any leftover files:
Sometimes, after uninstalling, remnants of the app can cause issues. Go to Finder, then press Cmd + Shift + G and enter ~/Library/Application Support/ and remove any Tweek-related folders. Also check ~/Library/Preferences/ for any Tweek files.

4. Restart your Mac before attempting a fresh install.

5. Try installing again from the official Tweek source.

If after this, the app still says it’s incompatible, it might be that the current version of Tweek dropped support for macOS 10.15.7. In that case, you might need to either upgrade your macOS (if your hardware allows) or look for an older compatible version of Tweek—though that might be less secure or missing features.

Let me know what exact compatibility message you’re seeing or if you want help checking your macOS compatibility with the Tweek app. We’ll get this working for you step by step!