Open source alternatives to slack-gif-creator

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slack-gif-creator

Create animated GIFs optimized for Slack's size constraints

Toolkit for creating animated GIFs optimized for Slack with validation and animation utilities. Provides GIFBuilder for frame assembly, validators to check Slack compliance, and easing functions for smooth motion (bounce, elastic, ease-in-out, etc.). Supports emoji GIFs (128x128, under 3 seconds) and message GIFs (480x480) with configurable FPS, color palette, and optimization flags.