Tweak Installer is a desktop-based Debian package installer for Electra development toolkit. Today the developer Joseph Walden updated tweak installer 1.01 after fixing a load of bugs with a new UI. Installs tweaks in the form of IPAs, Zips and Debs automatically and converts them to a format compatible with electra if you're using electra.

Update: Some people are having issues with 1.0.1 installing debs. If it says it's an invalid deb downgrade to 1.0 for now (you can delete version.txt to stop version updates if you want.

This tool also installs tweaks and themes on your Apple device remotely with SFTP. Here’s how it works:

Establish an SFTP connection with the target device.

Convert the Deb file to an installable format.

Transfer it automatically to the required locations on the device’s filesystem (SBInject, Preferences, etc).

You could visit github website to get more information.