php-rss-bridge/docs/01_General/03_Requirements.md

RSS-Bridge requires either of the following:

A Web server* with:

• PHP 7.4 (or higher)
• openssl extension
• libxml extension (enabled by default, see PHP Manual)
• mbstring extension
• simplexml extension
• curl extension
• json extension
• filter extension
• zip (for some bridges)
• sqlite3 extension (only when using SQLiteCache)

Enable extensions by un-commenting the corresponding line in your PHP configuration (php.ini).

A Linux server with:

• Docker server configured (Any recent version should do)
• 100MB of disk space

To setup RSS Bridge using Docker, see the Docker Guide on installing RSS Bridge.