Just did a deep dive into the Kobo custom modding rabbit hole.

I made an experimental web front-end for the Go `kobopatch` to patch your Kobo via the browser: https://github.com/nicoverbruggen/kobopatch-webui

I've also made it available via: https://kp.nicoverbruggen.be

It currently only supports the latest devices and latest software version, but it works! Leverages the File System Access API, and does all the work clientside.

(Still need to write a blog post on it.)