Arch Linux

I've had trouble upgrading Nextcloud the last half a dozen packages. Even after a really rough go getting 21 going properly (in which I basically had to redo the install myself), the point releases since have been choking.

I seem to have 3 problems, presented here in the order of seriousness and ease of addressability:

* The main problem seems to be that the .htaccess file in `/usr/share/webapps/nextcloud` cannot be written by the `occ` utility. My config includes enabling the rewrite rules that remove artifacts like `/index.php` from user facing URLs. The option to enable this is set in the config, but then Nextcloud itself needs to be able to write to the htaccess file to actually make it work. In my case I expect to need to run `occ update` and `occ maintenence:update:htaccess` after updates, but the latter won't run because the file is owned as root. I think in needs to be owned by the *nextcloud* user.

* An addition to this that may or may not be appropriate to fix is that these settings get blown away on every update because the file is not listed for backup. I suspect fixing the first point will make this not as bad and it probably shouldn't be backed up, but ...

* Lastly there seems to be some issue with the config location. I have ongoing errors in the admin section complaining it can't write the config. I have `'config_is_read_only' => true` set but the UI still warns me to set it. Perhaps something is amiss with where Nextcloud expects to find configs?