600$ a month from my open source project (https://github.com/mickael-kerjean/filestash https://github.com/mickael-kerjean/filestash) whose idea came from the in

600$ a month from my open source project (https://github.com/mickael-kerjean/filestash https://github.com/mickael-kerjean/filestash) whose idea came from the infamous HN launch of Dropbox (https://news.ycombinator.com/item?id=8863 https://news.ycombinator.com/item?id=8863). I made that cool frontend for FTP server with an interesting twist as I've abstracted: 1. the backend storage: meaning it connects to a wide range of existing storage like FTP, SFTP, S3, Dropbox, ... 2. the authentication layer: meaning you can use your own identity provider to put your S3 buckets behind your corporate SSO 3. the authorization layer to create business rules At its core, the software is a framework to develop file manager like web applications by implementing a simple interface (https://github.com/mickael-kerjean/filestash/blob/f7a4e52703e3344a6b9c97690514a1fbef9b6ced/server/common/types.go https://github.com/mickael-kerjean/filestash/blob/f7a4e52703...). This does enable all sort of interesting use case. For example, the mysql implementation shows database name as first level folder, tables as second level folders and each row in a table is shown as a file within the table folder which a user can edit directly through the generated form built from the schema information. That way people who are used to the Dropbox interface can edit the database directly, create shared links, search through stuff without having to know about sql Most of the money comes from companies who needed various degree of customisation and support or didn't want to host on premise.