Setup psalm

[nickvergessen]

Steps to reproduce

Expected behaviour

Tell us what should happen

Actual behaviour

Tell us what happens instead

PDF Converter app

PDF Converter app version: (see apps admin page: /index.php/settings/apps)

Server configuration

Operating system: Ubuntu/RedHat/...

Web server: Apache/Nginx

Database: MySQL/Maria/SQLite/PostgreSQL

PHP version:

Nextcloud Version: (see admin page)

Where did you install Nextcloud from:

Signing status:

Login as admin user into your Nextcloud and access
http://example.com/index.php/settings/integrity/failed
paste the results here.

List of activated apps:

``` If you have access to your command line run e.g.: sudo -u www-data php occ app:list from within your server installation folder ```

Nextcloud configuration:

``` If you have access to your command line run e.g.: sudo -u www-data php occ config:list system from within your Nextcloud installation folder

or

Insert your config.php content here
Make sure to remove all sensitive content such as passwords. (e.g. database password, passwordsalt, secret, smtp password, …)

</details>

**Are you using external storage, if yes which one:** local/smb/sftp/...

**Are you using encryption:** yes/no

### Server log (data/nextcloud.log)
<details>

Insert your server log here

</details>