Meridian

Meridian is an open-source AI work journal that runs entirely on the user's device, quietly observing which apps and tasks are used throughout the day and how long each takes, then writing it up in plain English by the end of the session. Because the timeline is built from what actually appeared on screen rather than what a person remembered to log, the resulting record reflects real activity instead of a self-reported summary. It connects to Jira, Linear, GitHub Projects, Azure DevOps, and Trello, and can auto-draft status updates for those tools directly from the day's activity. All captured activity, analysis, and journal entries are stored in an encrypted, on-device database — there's no cloud, no account, and no setup ceremony required to start. Meridian is MIT licensed and built in Rust, and runs on macOS (Apple Silicon or Intel) and Windows 10/11.