Timeline-kun: A GUI Application for Time-Managed Protocols in Human-Subject Research

Timeline-kun is a desktop Graphical User Interface (GUI) application for planning, executing, and documenting time-managed protocols in human-subject research. Schedules are defined in a simple CSV format editable in spreadsheet software, a text editor, or within the application, then visualized as a timeline and exported to Scalable Vector Graphics (SVG). The schedule can be executed as a timer that supports rehearsal or restart from an arbitrary stage. During execution, Timeline-kun plays WAV alarms and records logs in Brain Imaging Data Structure (BIDS) events.tsv format. It can also optionally control GoPro cameras over Bluetooth Low Energy (BLE). The software is implemented in Python and distributed as both a package and a standalone Windows executable.