1. Open Path "/app/data/public/" and delete all files (including .htaccess)
2. run git clone https://github.com/atrocore/skeleton-pim-no-demo.git . && php composer.phar self-update && php composer.phar update (make sure you are in "/app/data/public/")
3. run find . -type d -exec chmod 755 {} + && find . -type f -exec chmod 644 {} +;
4. run find client data custom upload -type d -exec chmod 775 {} + && find client data custom upload -type f -exec chmod 664 {} +
5. add to cron in cloudron app settings: * * * * * php /app/data/public/index.php cron
6. open App URL and run setup
7. Get mysql credentials from /app/data/credentials.txt
8. Add required parameters to /app/data/php.ini:
   max_execution_time=180
max_input_time=180
memory_limit=256M
9. Restart App
10. Finish Setup

Updates can be done in the Admin UI:
Administration → System → Modules → Update
(you have to restart the App in Cloudron after every Update)

You can use this Image for the Launcher:

I hope everybody specifies what the acronyms mean on their first use. This courtesy of YouChat AI:

A PIM (Product Information Management) solution is a software tool that helps companies collect, manage, and distribute product information across their various sales channels. It serves as a centralized platform that compiles and organizes information about a company's products, such as descriptions, prices, images, and specifications. A PIM solution allows companies to keep their product information consistent and up-to-date across all channels, including websites, marketplaces, and social media. It can also integrate with other business systems, such as ERPs and CRMs, to provide a complete view of a company's product data. Overall, a PIM solution helps companies to streamline their product management processes and provide accurate information to their customers.