https://gitlab.com/postmarketOS/pmaports/-/merge_requests/1169 got merged a bit too early (that's not a breaking change though) [ci:skip-vercheck] [ci:skip-build]
This gets the Samsung Galaxy Tab S 10.5 Wifi (samsung-chagallwifi) working at a very basic level. Full instructions of how to flash the device etc are already on the wiki at https://wiki.postmarketos.org/wiki/Samsung_Galaxy_Tab_S_10.5_WiFi_(chagallwifi)