internal/

Package keylayout maps keypresses between the player's physical keyboard layout and the QWERTY positions every binding is authored against (ADR 0022).

Package missions defines pass/fail Objectives and the Missions that bundle them, evaluated against the live sim state each Tick.

Package physics implements the spacecraft propagation layer: state vectors, integrators (Verlet + RK4), and patched-conic SOI handling.

Package planner implements trajectory prediction (predictor) and stubs for Phase 3 maneuver-library work (hohmann, lambert) that slip past v0.1.

Package relay is the multiplayer store (v0.27 S4, ADR 0034): a no-physics, no-clock report/subscribe hub.

Package render holds the visual constant tables shared across screens — body color palette, UI tier colors for status / nodes / trajectory.

Package save persists and restores the simulation World as JSON.

Package serve hosts the embedded SSH front door for multiplayer sessions (ADR 0034, v0.27).

Package sessiondir is the server-side session directory for multiplayer (v0.27 S3, ADR 0034): a versioned session.json holding the player roster, outstanding invite codes, and the body-catalog hash, plus one save envelope per enrolled player (current save.SchemaVersion).

Package settings holds the player's global UI preferences — currently the default visibility of each orbit-screen Chip — persisted to a standalone settings.json under $XDG_CONFIG_HOME/terminal-space-program/.

Package sim — v0.11.0+ launch-trail breadcrumb buffer.

Package spacecraft holds the Spacecraft type and its mutable runtime state (current primary + state vector + fuel).