Build Requirements: DMD or LDC2, and DUB. Test the actor runtime Phase 1 focus is libbeam_d. dub test :libbeam_d Build the shell stub dub build The workspace root dub.sdl produces bin/actor-shell (or bin/actor-shell.exe on Windows). Graphics and shell UI packages are stubs until later phases. Workspace layout packages/libbeam_d/ Phase 1–2 runtime packages/libglaze_2d/ Phase 3 stub packages/libshell_bridge/ Phase 4 stub packages/actor_shell/ Phase 5 stub app Architecture Status