Kairos
Instant replay for Windows games. Press a key or say your phrase to save the last minutes. Free, open source, offline.
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GITHUB · launched Oct 17, 2026 · 23 upvotes (top 52%) · 0 views
Niche: video game utility software · 122 launches, 32 in the last 7 days · Explore this niche →
Category and tags
- Media & entertainment
- Workflow automation
- B2C
- Not AI
- Hobby / open-source project
- av1
- game-clips
- game-recording
- instant-replay
- libobs
- nvenc
- +4 more
Visit website ↗ Source listing ↗
Could you build this?
Partial The UI, settings, and hotkey handling are easy to vibe-code, but reliable low-overhead screen and audio capture with hardware encoding and a rolling buffer is systems work that is hard to get right.
What it would actually take: A real version needs a native capture layer (Windows Graphics Capture or DXGI Desktop Duplication) feeding a hardware-accelerated encoder such as NVENC, QuickSync, or FFmpeg, plus a circular buffer of recent segments. Offline voice-trigger detection would use a small local speech model like Vosk or Whisper.cpp. The hard part is keeping game frame rate unaffected, which needs someone who understands Windows graphics and encoding performance.
Competitors
Other products that read as similar to this one : 141 launches clear the similarity bar, closest 8 shown.
Attention rank: #66 of 142 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).
Launched 324 days after the earliest competitor.
- Replayable · ph · 2026-10-05 · 2 upvotes · similarity 0.49
- ClipForge · ph · 2026-11-03 · 1 upvotes · similarity 0.42
- recall · github · 2026-10-02 · 102 upvotes · similarity 0.41
- Postmatch · ph · 2026-10-27 · 1 upvotes · similarity 0.40
- Afterhours · github · 2026-09-15 · 7 upvotes · similarity 0.40
- games · github · 2026-09-16 · 10 upvotes · similarity 0.39
- carafe · github · 2026-10-08 · 159 upvotes · similarity 0.38
- Kairo · ph · 2026-09-29 · 2 upvotes · similarity 0.38
The niche, labels, vibe code rating and competitor comparison on this page are analysis by Nicheloom. If you use them, please credit nicheloom.com. How you may use our data.