Start with one file

Start with the files you want to work on. Eidos Lite opens a local folder of .eidos and ordinary files as a Space. The Web Editor and CLI work directly with individual Eidos Files. Both tools use the same open SQLite format and Runtime.

Goal	Start here	Storage location
Manage a folder of files and notes	Eidos Lite	Local files in a Space
Try one file without installing an app	Web Editor	Save to disk or download the file
Use commands or an AI agent	CLI	The target file path

Local work does not require an account. Lite provides local version history. Sync is optional.

Make something small

1. Create an Eidos File named books.eidos.
2. Add a Books table with a Title field.
3. Add a book record.
4. Add a Status Select field.
5. Check that your changes save to books.eidos.
6. Keep referenced attachments beside the file when you copy or move it.

Follow the book-list walkthrough. If the concepts are new, read how the pieces fit.

Go further

Build a plugin to add an editor or a custom tool. Read the specifications to implement a compatible application.