Hamp Keyboard

Hamp Keyboard is a fork of FUTO Keyboard (itself a fork of AOSP LatinIME), customized to install side-by-side with the official app under its own package identity. Its core upgrade: the spacebar becomes a cursor-control surface. Swipe left/right to move the cursor character-by-character, up/down to move line-by-line — with faint chevrons on the spacebar advertising the gestures. The traditional arrow-key row remains available as an independent toggle (off by default), so users who never touch arrows get a one-row-shorter keyboard with larger keys, and users who want them can flip them back on. Ships a dark-first "Charcoal & Ember" design system with grouped settings cards, bundled Space Grotesk + DM Sans typography and a matching light variant. All upstream dependencies are vendored into the repository — no submodules, no external GitLab access. Written in C++ on the Android NDK against the LatinIME input-method framework.

Highlights

• Spacebar becomes a cursor-control surface — character- and line-wise swipe
• Arrow row kept as an independent toggle rather than removed
• Fixed spacebar cursor behaviour in terminals such as Termius
• No upstream payment, update-checking or crash-reporting subsystems

Technical architecture

• Base: forked from FUTO Keyboard, itself a fork of AOSP LatinIME.
• Package identity: application ID com.hamp.inputmethod.latin.hamp and namespace com.hamp.inputmethod.latin — fully independent of upstream, installs side-by-side.
• Input layer: spacebar swipe handled in the LatinIME gesture pipeline, mapped to cursor movement or language switching via a configurable mode.
• Theming: Charcoal & Ember — dark-first OKLCH-derived palette with a light variant, custom typography and circular icon tiles.
• Build: all external dependencies (layouts, themes, dictionaries, translations, swipe models, AARs) vendored in-repo; ./gradlew assembleStableDebug.