butler was designed to be integrated into your workflow, no matter which tools you prefer. Here's a list of existing integrations.
unity-build is a set of a build scripts by Chase Petit that are meant to be generic, exapandable and customizable. This includes supporting the generation of AssetBundles as well as preparing/uploading builds for services like itch.io and Steam.
itchy-electron is a CLI app for building and publishing games and tools using Electron to itch.io.
gradle-butler-plugin is a gradle plugin for automatically installing, updating, and running butler as part of your build.
Here's a few articles people have written about integrating butler into their release pipeline:
- Unity build automation (by Jesse, developer of Dr. Spacezoo) shows how to use an editor script in conjunction with a bash script to push to itch.io and other platforms in a single go.