smalltalk-matrix/README.md

2.1 KiB

SmallTalk Assemble codecov License

SmallTalk is a minimal, modern, friends and family focused Android messenger. Heavily inspired by Whatsapp and Signal, powered by Matrix.


Project mantra

  • Tiny app size - currently 1.72mb~ when provided via app bundle.
  • Focused on reliability and stability.
  • Bare-bones feature set.
*Google play only with automatic crash reporting enabled

Feature list

  • Login with username/password (home servers must serve ${domain}.well-known/matrix/client)
  • Combined Room and DM interface
  • End to end encryption
  • Message bubbles, supporting text, replies and edits
  • Push notifications (DMs always notify, Rooms notify once)
  • Importing of E2E room keys from Element clients

Planned

  • Device verification (technically supported but has no UI)
  • Invitations (technically supported but has no UI)
  • Room history
  • Message media
  • Cross signing
  • Google drive backups
  • Markdown subset (bold, italic, blocks)
  • Changing user name/avatar
  • Room settings and information
  • Exporting E2E room keys
  • Local search
  • Registration

Technical details

  • Built on Jetpack compose and kotlin multiplatform libraries ktor and sqldelight (although the project is not currently setup to be multiplatform until needed).
  • Greenfield matrix SDK implementation, focus on separation, testability and parallelisation.
  • Heavily optimised build script, clean cacheless builds are sub 10 seconds with a warmed up gradle daemon.
  • Avoids code generation where possible in favour of build speed, this mainly means manual DI.
  • A pure kotlin test harness to allow for critical flow assertions Smoke Tests, currently Linux x86-64 only.