Testing only — not yet a production accounting system. The installed app runs locally in your browser, with offline application files cached after initial setup. This version ships no actual expense transactions or notes; load your existing schema-1 JSON or your authorized Supabase cloud document after signing in. Rental units are editable placeholders; your private rent data was not imported. Tenant profiles may contain personal contact information; verify SQL row security and both user accounts before importing real tenant data to Supabase. Supabase login gates the application interface and the cloud database uses RLS, but the app bundle, browser recovery, and OneDrive JSON are not encrypted. Use a trusted computer and keep local backups private. Save to a folder synchronized by OneDrive only after checking that OneDrive is fully synced. The app cannot confirm cloud synchronization. Keep JSON backups as well. One-time tenant adjustments change arrears but are not included in rental income or HST totals. Supabase detects revision conflicts but does not merge simultaneous edits. The OneDrive file also remains one-editor-at-a-time. Excel exports are downloaded to your computer and may contain tenant names or financial details; store them securely.