HimangshuRaj Gogoi.

The problem

Everyday tasks need useful preparation without quietly sending messages or taking consequential actions.

What I built

A Python planner with validated tool steps, SQLite memory, deterministic local commands and exact draft reviews. The local web studio makes those boundaries visible. Development main adds paginated notebook browsing, Unicode-aware literal note search and notes-only JSONL export, plus a Flutter/Dart Android app with a local notebook and editable flashcard decks, a due-review queue and deterministic Again/Hard/Good/Easy intervals. Cards are user-authored, not AI-generated. The Android source also includes a standalone Flutter widget embedding a bundled WebGL 3D scene: a rotating orbital core, rings, branching neural filaments and moving pulses, with Adaptive, Ultra detail and Battery quality modes plus a neural-light toggle. It is local decorative art, restricted to the bundled page with no JavaScript bridge; it does not show AI activity or connect to a model. Main-branch Android source also adds finite progress notifications for user-started active chat requests; this is not a background service or an Android 16 Live Update.

Technologies

Python standard library · SQLite · Flutter/Dart · Android/Kotlin and Java · Flutter WebView · WebGL · vanilla HTML/CSS/JavaScript

Engineering takeaway

A preview is not permission. Validating a plan again before execution and invalidating changed approvals are explicit design boundaries in the code. The orb is clearly labeled as decorative art, separate from AI activity.

What’s still ahead

An earlier flashcard verification passed 27 Flutter tests and both hosted API36 native integration tests, including local study-record persistence across reload and restart. Android 16 CI run 39923508217 passed on main commit 424287b6d0783839955b12b726b1c44bd011d1de: Flutter checks, Rust native search checks, API36 instrumented local-first checks and Evidence. The public v0.3.0-build17 APK release is built from main commit 01d4fa1f5d9e46339bd30583bd0c663a502c2cc3. Android APK signature verification passed (v2); its published SHA-256, 4bc03d55cb0ef658f7c5861ba70557870c97421c582c3a91cba70680bc48d1c7, matches the downloaded 68.7 MB APK. The release workflow’s Gitleaks scan of strings extracted from that signed APK found no leaks. It is a direct-install APK, not a Play Store listing. Installation on Redmi 24090RA29I/HyperOS remains unverified. The orb remains a standalone source component, not wired into the app screen; it is decorative and does not connect to a model. These checks do not establish physical Redmi/HyperOS installation or model inference; Indic-Speak integration and qualification were not assessed. No message sending or connected social accounts. The web studio needs a local Python server. The study cards do not generate lessons or estimate mastery. Existing Python releases do not include the Android additions; JSONL exports are plaintext, not encrypted backups. The previous stable Android release was v1.00.00.0000.0 (build 18, versionCode 18); its Android 16 CI, Flutter and Rust checks, APK signing and integrity verification, and source/APK secret scans passed. Published APK SHA-256: a4161dbdcfec6097f824b9bb81de2284636b279da96aad2bafcc1ecf9269d202. It was a direct-install release, not a Play Store listing; Redmi 24090RA29I/HyperOS installation and runtime remained unverified, and Indic-Speak offline voice generation is not included. The previous stable release was v1.00.00.0000.0-build19 (versionCode 19), built from main commit 83708a98d72067ccc7b1e838f37b64e2482b4fe5 and signed with the configured Android release key. Its 72,233,902-byte ARM64 APK was a direct install, not a Play Store listing; published SHA-256: 6876b8fda399c480317913f07cb62019f6c588166dcc2145cd7e20d6f7989084. Build 21 (versionCode 21) was a previous stable release. The previous stable release was v1.00.00.0000.0-build24 (versionCode 24), published 24 October 2026 and built from main commit 5b57968dcaf2f0f393816ba630db26e6060e48a3, signed with the configured Android release key. Its 76,539,207-byte ARM64 APK was for direct installation, not a Play Store listing; published SHA-256: a04cd9db73483cd3ae90c2803fc9b7b0ca9d0321e5dc8efd69c943c72e524380. The release notes said the LiteRT-LM JNI callback keep-rule was included; local Gemma chat remained experimental, and Redmi 24090RA29I/HyperOS installation and runtime were unverified. Indic-Speak offline voice generation was not implemented; existing Android TTS and optional ElevenLabs are separate features, not an Indic-Speak replacement. The previous stable release was v1.00.00.0000.0-build25 (versionCode 25), published 25 October 2026 and built from main commit ae4d42703044973d0bdaef7244f537a090b9910f, signed with the configured Android release key. Its 76,687,171-byte ARM64 APK is for direct installation, not a Google Play listing; published SHA-256: ae0c60bae59c603a67895ed14dfe52f0e82d9e765b8467810fd05f2505b15b30. The release notes say the LiteRT-LM JNI callback keep-rule is included; local Gemma chat remains experimental, and Redmi 24090RA29I/HyperOS installation and runtime remain unverified. Indic-Speak offline voice generation is not implemented; existing Android TTS and optional ElevenLabs are separate features, not an Indic-Speak replacement. The main commit changes only the study-whiteboard test default for compatibility; it does not establish device compatibility or model qualification. Offline Qwen replies remain unqualified (`chat_qualified=false`), and Redmi/HyperOS installation and runtime remain unverified. Main commit 8e515b2 adds the active-chat progress tracker and Flutter/Kotlin unit tests. Android 16 CI run 40191147577 passed on main commit 8e515b2; at that point, this main-branch change was not included in stable build24, so the check did not establish released-APK behavior. After this release, API 36 CI run 40162187143 passed on main commit 162f233, which corrected only the expected Gemma offline-status text. At that point, this main-only test fix was not included in build24 and did not qualify Qwen or Gemma chat; Redmi/HyperOS behavior remains unverified. The latest published stable release is v1.23.07.01-build26 (versionCode 26), published 25 October 2026 and built from main commit f76d3a168fd2c12a5d6c15d50614fb192e937041, signed with the configured Android release key. Its 77,081,783-byte ARM64 APK is for direct installation, not a Google Play listing; published SHA-256: 6734dc84192499658c2c974f7db046557294ce17e1d4badddd79a92219b134a0. The release notes say Redmi 24090RA29I/HyperOS installation has not been physically verified, local Gemma chat remains experimental, and Indic-Speak offline voice generation is not implemented; Android TTS and optional ElevenLabs are separate features.

Based on repository snapshot ae4d427 ↗ (opens in a new tab), checked 25 October 2026. Takeaways describe the implementation, not a claimed personal lesson.

The problem

Finding one useful explanation inside a long lecture can mean a lot of scrubbing and lost context.

What I built

A local-first TypeScript lecture player with SRT/VTT/JSON imports, keyword search, timestamp seeking, video-frame previews and Markdown note export. The separate stable Android APK bundles English/Hindi speech recognition, a sequential decoded-frame gallery, offline OCR and local transcript/note recovery. Current source restores saved text locally; the video must be selected again.

Technologies

TypeScript · native DOM · Vite · Playwright · Python transcription utility · Java Android host

Engineering takeaway

A video frame is not automatic slide recognition. The implementation keeps that distinction visible, bounds imports and escapes transcript text and exported notes.

What’s still ahead

The embedded web snapshot uses keyword search, not semantic AI search; it has no automatic slide detection or OCR, and its notes stay in the current tab until exported. It does not transcribe on Android. The separate stable APK passed Android 16 emulator checks, not physical-phone or older-version qualification. Speech and OCR can be wrong; equations and small text need review. Export important notes; clearing local data can erase them. The APK is a self-signed GitHub sideload, not a Play Store release.

Based on repository snapshot fb9a6f6 ↗ (opens in a new tab), checked 21 October 2026. Takeaways describe the implementation, not a claimed personal lesson.