You will write the front end faster than you will build a panel with roles, versioning and multilingual support. And that is what usually eats the budget.
Each concerns the part of the work the client never sees and does not want to pay for.
A content editor, roles, change history and multiple languages are half the project budget. The other half is the front end itself.
In LessCMS: the panel comes ready-made. You quote for the front end, not for building the back office.
The client wants another field on an entry. In a hand-written CMS that is a database migration and code changes.
In LessCMS: you add the field in the panel. The API starts returning it and you simply render it in the view.
You are left with hosting, updates and a phone call when something stops working at 10pm.
In LessCMS: we maintain the back office. You are responsible for your front end.
A public read-only API, authenticated with a key. Every resource follows one address pattern.
Define the content types — the way you would design the tables.
One request and the data is in your front end.
Set the roles so they cannot touch what they should not.
The documentation is public, no login required. Check the structure before you create an account.