title: Source Map and Glossary

aliases: [Glossary, Source Map]

tags: [3netra/wiki, glossary, sources]

product: 3netra Meta Android App

source_repository: 3Netra-ai/3n_meta_android

source_ref: origin/prod

source_revision: b48aada8fd5427b5db0c02945569963c4ae543c8

last_verified: 2026-08-06

1. Active source and build configuration.

2. Automated tests and CI behavior.

3. Repository documentation that matches active source.

4. Progress notes and meeting claims.

5. PRDs, Jira acceptance criteria, roadmaps, and future matrices.

Paths below are relative to the reviewed canonical repository `3Netra-ai/3n_meta_android` at `origin/prod` `b48aada8fd5427b5db0c02945569963c4ae543c8` (2026-08-05, merge PR #11 cleanup). Its local checkout directory is named `archived-3n-meta-app`.

| Topic | Primary source |

|---|---|

| Compose build | `src/frontend/settings.gradle`, `src/frontend/app/build.gradle` |

| Secondary Expo app | `settings.gradle.kts`, `android/app/` |

| CI | `.github/workflows/android-build.yml` |

| Startup/auth routing | `src/frontend/app/src/main/kotlin/com/threenetra/app/MainActivity.kt`, `MainViewModel.kt` |

| Navigation | `src/frontend/app/src/main/kotlin/com/threenetra/app/ui/Navigation.kt` |

| Student home | `.../ui/student/StudentHomeScreen.kt` |

| Visual chat | `.../ui/student/AssistantChatScreen.kt` |

| Scene modes | `.../ui/student/SceneDescriptionScreen.kt` |

| Story/history | `.../ui/student/TodaysStoryScreen.kt` |

| Face enrollment/list | `.../ui/student/FaceRegistrationScreen.kt`, `ClassmatesScreen.kt` |

| Lecture notes | `.../ui/student/LectureNotesScreen.kt` |

| Settings/companions | `.../ui/student/SettingsScreen.kt`, `CompanionSelectScreen.kt` |

| Supabase | `.../services/SupabaseService.kt` |

| Active AI client | `.../services/SupabaseAiService.kt`, `supabase/functions/chat-vision/index.ts` |

| AWS prototype | `.../services/AwsBackendService.kt`, `src/backend/template.yaml`, `src/backend/src/app.js` |

| Meta camera | `.../services/WearableCameraService.kt` |

| Speech | `.../services/VoiceCommandService.kt`, `AudioTranscriptionService.kt` |

| Sarvam | `.../services/SarvamService.kt` |

| Face model | `.../ml/FaceNetModel.kt` |

| Local biometric utility | `.../utils/EncryptedFaceStorageManager.kt` |

| PDF export | `.../utils/PdfExportManager.kt` |

| Permissions/components | `src/frontend/app/src/main/AndroidManifest.xml` |

| Build/test/CI | `src/frontend/app/build.gradle`, `src/frontend/app/src/test/`, `.github/workflows/android-build.yml`, `.github/workflows/deploy-backend.yml` |

| Source | Use |

|---|---|

| [[3n Meta app Context Mesh]] | Current-functionality claims, feature roadmap, Q2 epics |

| [[Mayukh progress]] | Supabase/data model and historical delivery claims |

| [[JIRA_TICKET_AI_CHAT]] | AI chat acceptance criteria and definition of done |

| `../../3n-Pod_Glass-POC/3Netra_Glass_Feature_Technical_Matrix.md` | P0/P1 requirements, targets, proposed vendors, hardware roadmap |

| `../../3n-DesignSystem/README.md` | Product voice, visuals, accessibility, mascot concepts |

| [[Org Meeting logs and Action Items]] | Delivery claims and organizational follow-ups |

| Reference | Verified meaning |

|---|---|

| Local AI-chat story draft | [[JIRA_TICKET_AI_CHAT]]; no Jira key, URL, assignee, or sprint is recorded |

| Harness PR #1 | Local merge commit `a933ced`, "add-hermes-integration-skills"; not app implementation evidence |

| Harness PR #2 | Local merge commit `63ec6cf`, "harness-readme-and-restructure"; not app implementation evidence |

The audited Android source commit is merge PR #11, `b48aada8fd5427b5db0c02945569963c4ae543c8`, dated 2026-08-05. No implementation claim in this wiki relies on unverified PR narrative.

| Artifact | Purpose/status |

|---|---|

| `../3Netra_Feature_Technical_Matrix.pdf` | Three-page Meta-app feature matrix; requirements/reference, not implementation proof |

| `../../3n-Pod_Glass-POC/3Netra - Pod & Glass - PitchDeck.pdf` | Product pitch deck; reference only |

| `../../3n-Pod_Glass-POC/ShortDemo.pdf` | Product demo document; reference only |

| `../../3n-Pod_Glass-POC/Feature-Manual.png` | Feature manual image; reference only |

| `3nApp-Mobile/3Netra_Feature_Technical_Matrix.pdf` | Android-repository feature matrix; reference only |

| Term | Meaning |

|---|---|

| DAT | Meta Wearables Device Access Toolkit used for registration, device state, and capture |

| VLM | Vision-language model that answers questions about images/video |

| OCR | Optical character recognition |

| TTS / STT | Text-to-speech / speech-to-text |

| Face embedding | Numeric representation used to compare faces; biometric data |

| RLS | PostgreSQL row-level security, used by Supabase to authorize rows |

| PostgREST | Supabase's REST data API over PostgreSQL |

| Companion | Student-selected AI guide/avatar |

| Student shell | Main four-tab Compose navigation surface |

| HAL | Planned hardware abstraction layer for multiple glasses vendors |

| Implemented | Verified active source path |

| Claimed | Historical note says delivered, without active-path proof |

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