This repository is a build system that produces a color emoji SVGinOT (SVG in OpenType) font from Twitter Emoji (Twemoji) artwork. The core pipeline ingests SVG files, generates black-and-white fallback glyphs via Inkscape/ImageMagick/potrace, optimizes color SVGs with SVGO, and assembles them into a TrueType font using the SCFBuild tool. The Makefile orchestrates the entire process, including packaging for Linux (tar.gz, .deb), macOS, and Windows. The project includes platform-specific install/uninstall scripts, fontconfig configuration for Linux, and a CI workflow for automated builds. It is a focused, well-documented tool for generating emoji fonts with full ZWJ sequences, skin tones, and country flags. The primary reusable asset is the Linux fontconfig file, which demonstrates a clean pattern for overriding system emoji fonts without breaking other font rendering.