Gesture (swipe/glide) typing decodes a continuous touch path over the keyboard into dictionary words. The AOSP engine this keyboard is built on ships everything around the decoder - touch capture, path sampling, a beam-search traversal engine, but the decoder itself was proprietary and absent. This implementation supplies that decoder: an HMM-style alignment model that runs inside the existing traversal engine, plus a transliteration layer so swiping works on Indic transliteration layouts.