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midi-harbor/specs/README.md
James Coleman 43f7b8916b fix(appimage): install the desktop entry so the window gets its icon 
- A Wayland desktop finds a window's icon by looking up its application ID among the installed desktop entries. An AppImage carries its entry and icon inside its own tree, where no desktop looks, so its window showed the generic Wayland icon and Midi Harbor was missing from the application menu.
- Run from an AppImage, the window now installs com.mrgeckosmedia.MidiHarbor.desktop under $XDG_DATA_HOME/applications and the icon under icons/hicolor/scalable/apps before it opens. Exec is rewritten to the AppImage file, quoted as the Desktop Entry Specification requires, and each file is written only when it differs, so a moved AppImage is followed.
- TryExec names the AppImage file, so desktops stop offering the entry once the file is deleted, which is how an AppImage is removed.
- Nothing is installed when a directory in XDG_DATA_DIRS already holds the entry: one under the user's directory takes precedence and would point a package's menu item at the AppImage.
2026-10-02 12:32:08 -05:00

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Specifications

One spec per capability, numbered by topic. Each holds its user stories, requirements, success criteria, research and tasks; the architecture, the daemon contract and the command-line contract are in 001, and every spec follows the constitution.

Requirement (FR), success criterion (SC), research (R) and task (T) numbers are unique across every spec, and the code cites them by number. They were given in the order the work was done, so one spec's numbers are not contiguous; the lists below say which spec holds each. The one exception is 014, whose task list started again at T001: its T001 to T034 are cited as 014's.

Spec What it covers
001-service-and-clients The single executable, the daemon, the gRPC contract, the command line, installing the service, packaging; the architecture and the original input
002-configuration The configuration file, applying changes while running, export and import, Apple's setup, capabilities
003-virtual-ports Ports applications on one computer use to talk to each other
004-hardware-devices Attached MIDI hardware and other applications' ports, hot-plug, identity
005-network-ports RTP-MIDI between computers: discovery, invitations, the journal, machines, the automatic port
006-bluetooth-midi Bluetooth LE MIDI, connecting out and advertising
007-routing Routes between any two endpoints, loops, system-exclusive, the repeater
008-resilience Recovery: backoff, sleep and wake, releasing notes, restoring state, the MIDI service dying
009-observability State, counters, history, the monitor, the diagnostic report
010-graphical-interface The libcosmic window and its redesign
011-midi-service-crash-warning Warning that other apps may have lost MIDI; when traffic last moved each way
012-test-note Sending a note out of an endpoint to test what listens
013-windows-support Windows as a first-class platform
014-mac-app-store-mode The sandboxed App Store build, run from the menu bar
015-mac-menus The menus on macOS: File, Edit, View, Window and Help
016-app-store-submission Building the package App Store Connect takes
017-appimage The AppImage for Linux, and registering the daemon from it
018-remembered-machines Machines a network port connected to: forgetting old connections, following a session that moved, proving which port a session is; answering Apple over a link-local address
019-daemon-updates Telling that the daemon is another build than the window, and updating it when asked

Where each number is

001-service-and-clients

  • Requirements: FR-036–FR-039, FR-039a, FR-039b, FR-039c, FR-039d, FR-039e, FR-039f, FR-039g, FR-039h, FR-040–FR-043
  • Success criteria: SC-010, SC-014, SC-014a, SC-014b, SC-014c, SC-016
  • Research: R-003, R-007–R-009, R-012, R-023, R-028, R-042, R-052–R-054, R-059, R-081
  • Tasks: T001–T006, T009–T016, T028–T035, T038–T039, T041–T060, T063, T146–T147, T151–T154, T157, T166–T167, T172, T241

002-configuration

  • Requirements: FR-049–FR-053
  • Success criteria: SC-015
  • Research: R-011, R-043, R-061
  • Tasks: T022–T026, T040, T061–T062, T149–T150, T173–T174

003-virtual-ports

  • Requirements: FR-001–FR-002, FR-002a, FR-003–FR-007
  • Success criteria: SC-001, SC-002, SC-008
  • Research: R-002, R-014, R-048
  • Tasks: T064–T070, T072–T076, T161, T182, T197

004-hardware-devices

  • Requirements: FR-015a, FR-015b, FR-015c, FR-015d, FR-015e, FR-015f, FR-015g
  • Success criteria: SC-010a, SC-010c
  • Research: R-013, R-024, R-027, R-038–R-040, R-047, R-055
  • Tasks: T104, T107–T111, T116, T119, T158, T188, T190, T193

005-network-ports

  • Requirements: FR-008–FR-015, FR-015h, FR-015i
  • Success criteria: SC-003, SC-006, SC-009, SC-011
  • Research: R-004, R-005, R-015–R-016, R-017–R-018, R-020–R-022, R-036–R-037, R-046, R-049, R-056–R-057, R-060, R-063, R-065–R-066, R-068, R-071, R-073, R-076, R-080, R-082
  • Tasks: T007, T077–T082, T082a, T083–T096, T100–T103, T159, T168, T176, T179, T181, T184–T187, T191, T196, T198–T200

006-bluetooth-midi

  • Requirements: FR-016–FR-021
  • Research: R-006, R-041, R-058, R-064, R-075, R-077
  • Tasks: T008, T037, T128–T137, T156, T162, T169–T171, T175

007-routing

  • Requirements: FR-030, FR-030a, FR-030b, FR-031–FR-034, FR-034a, FR-035
  • Success criteria: SC-010b
  • Research: R-019, R-029–R-030, R-032, R-062
  • Tasks: T105–T106, T111a, T112–T115, T117–T118, T160, T177, T183

008-resilience

  • Requirements: FR-022–FR-029
  • Success criteria: SC-004, SC-005, SC-007
  • Research: R-010, R-031, R-033–R-035, R-044–R-045, R-050–R-051, R-067, R-069–R-070, R-072, R-074, R-079
  • Tasks: T017–T020, T020a, T021, T036, T071, T071a, T097–T099, T127, T148, T155, T192, T195

009-observability

  • Requirements: FR-044–FR-048
  • Success criteria: SC-012, SC-013
  • Tasks: T027, T120–T126, T163–T165, T178, T194

010-graphical-interface

  • Research: R-001, R-025–R-026, R-078
  • Tasks: T138–T145, T180, T189, T240

011-midi-service-crash-warning

  • Requirements: FR-M01, FR-M02, FR-M03, FR-M04
  • Success criteria: SC-M01, SC-M02
  • Research: R-101
  • Tasks: T236–T238, T242–T243

012-test-note

  • Requirements: FR-N01, FR-N02
  • Success criteria: SC-N01
  • Tasks: T239

013-windows-support

  • Requirements: FR-W01, FR-W02, FR-W03, FR-W04, FR-W05, FR-W06, FR-W07, FR-W08, FR-W09, FR-W10, FR-W11, FR-W12
  • Success criteria: SC-W01, SC-W02, SC-W03
  • Research: R-083–R-093
  • Tasks: T201–T226, T227–T228, T229–T230, T231–T235

014-mac-app-store-mode

  • Requirements: FR-A01, FR-A02, FR-A03, FR-A04, FR-A05, FR-A06, FR-A07, FR-A08, FR-A09, FR-A10, FR-A11, FR-A12, FR-A13, FR-A14
  • Success criteria: SC-A01, SC-A02, SC-A03, SC-A04, SC-A05
  • Research: R-094–R-100
  • Tasks: T001–T034

015-mac-menus

  • Requirements: FR-U01, FR-U02, FR-U03
  • Success criteria: SC-U01
  • Research: R-102
  • Tasks: T244

016-app-store-submission

  • Requirements: FR-S01, FR-S02, FR-S03
  • Success criteria: SC-S01
  • Research: R-103
  • Tasks: T245

017-appimage

  • Requirements: FR-I01, FR-I02, FR-I03, FR-I04, FR-I05
  • Success criteria: SC-I01
  • Research: R-104, R-109
  • Tasks: T246–T248, T254

018-remembered-machines

  • Requirements: FR-P01, FR-P02, FR-P03, FR-P04, FR-P05, FR-P06, FR-P07
  • Success criteria: SC-P01, SC-P02
  • Research: R-105–R-107
  • Tasks: T249–T252

019-daemon-updates

  • Requirements: FR-B01, FR-B02, FR-B03, FR-B04, FR-B05, FR-B06, FR-B07
  • Success criteria: SC-B01, SC-B02
  • Research: R-108
  • Tasks: T253