Login 3–32 chars (latin, digits, _ . @ -), password 8+ chars. The recovery code is shown exactly once after sign-up — save it: there is no email recovery.

By signing up you agree to the ACTION JOURNAL recording (which operations you performed, no schema texts) to improve the product; control it with the ⏺ button in the editor, details on the “Sessions” page. Schematics and documents are yours only; no other user can see them.