Free reeln — Post-Production CLI Toolkit for Livestreamers v0.0.26

Overview​

reeln is a free, open-source command-line toolkit that picks up where OBS leaves off. It takes your replay buffer recordings and turns them into organized highlight reels and 9:16 shorts, all powered by FFmpeg with no re-encoding.

Built for streamers who capture youth sports, esports, or any live event — reeln understands your sport's structure (periods, quarters, halves, innings) and organizes everything automatically.

What it does​

• Game workspace setup — reeln game init creates an organized directory for each game with sport-specific segment folders (e.g. period-1/, quarter-1/)
• Segment highlights — reeln game segment 1 merges all replays from a period/quarter into a single highlight clip using FFmpeg concat (no re-encoding, instant)
• Full-game highlight reel — reeln game highlights combines all segments into one video
• 9:16 short rendering — reeln render short creates vertical shorts from any clip, with optional player/goal overlays
• Scoreboard integration [OBS Plugin] — the streamn-scoreboard plugin writes team names, scores, and game info to text files that OBS Text (GDI+) sources can read live
• Plugin architecture — extensible with lifecycle hooks and typed capability interfaces

Typical workflow:​

1. Stream your game with OBS, saving replay buffer clips as usual
2. reeln game init roseville mahtomedi --sport hockey — sets up the game folder
3. Drop replay clips into the appropriate period folders
4. reeln game segment 1 — merges period 1 replays into a highlight
5. reeln game highlights — combines all periods into one highlight reel
6. reeln render short highlight.mkv — create a vertical short for social media

Requirements:​

• Python 3.11+
• FFmpeg 5.0+
• Works on macOS, Linux, and Windows

Install:​

python -m pip install reeln