This page is a work-in-progress.
There have been reports of stability issues involving lost WiFi passwords and USB connection that may be linked with this application. Tread with caution, especially if your Kobo device's internal memory is soldered.
Wallabako is a Wallabag client for Kobo (kind of like Pocket, but more open-source). While a similar functionality exists in KOReader, this application is built specifically for the purpose of retrieving articles from Wallabag.
Installation instructions are available here.