I am a full-stack web developer that has experience with JavaScript and React. I want to create a desktop application using these technologies using a framework like Tauri. I enjoy using services like Firebase, Supabase & AWS Amplify. Can I use these services in a desktop application? If so would I implement these services just like any other web application?
Another thing I am confused with is the workflow of desktop applications as I am new to them. Is a backend needed? Or can we access data from a remote DB directly from the desktop application? This approach doesn't seem to be the most secure.
Supabase is built on top of Postgres, so you can use this postgrest-rs library to access Supabase DB like you would with any Postgres DB. For more complex queries, you can create postgres function(s) in the database and call them using the rpc function in the client library.
For more information about other forms of connections, you can have a look at this guide.