MijiaTemp - MijiaTemp app contains features to allow users to get real-time information about the temperature, humidity level, moisture level, and battery level using a lock screen widget.
mailcow - An open source mailserver suite.
Lightmeter - Postfix monitoring and problem resolution
Modoboa - Modoboa is a mail hosting and management platform including a modern and simplified Web User Interface.
Yeelight - Yeelight is the ultimate remote control for all your smart lights to turn them on and off without having to press a physical button on the switchboard.
Mail-in-a-box - Mail-in-a-Box provides webmail and an IMAP/SMTP server for use with mobile devices and desktop mail software and also includes contacts and calendar synchronization.