# Build brief — a focused alternative to Tango

> **Verdict:** Partly, if you narrow it · **Buildability:** 48/100 · **Category:** Screen Recording
> **Source:** https://www.canitbevibecoded.com/tango
> Independent editorial assessment from Can It Be Vibe Coded? Not affiliated with, endorsed by, or derived from Tango. Verify current pricing and capabilities before acting.

## Context

**Tango** — Capture a workflow and generate a concise step guide with screenshots and annotations. It currently costs $24/mo.

The core loop is buildable, but a dependable replacement becomes a substantially larger project. For Tango, capture a workflow and generate a concise step guide with screenshots and annotations. The hard boundary is browser and desktop capture, blur controls, team sharing, and integrations, plus capture polish, hosting, and collaboration.

This brief describes a focused, single-operator replacement for the part of Tango that is genuinely reproducible. It is deliberately narrower than the product it replaces, and it says so in writing. Build the useful core; do not pretend to have rebuilt the rest.

## What you are building

Capture a screen workflow with microphone audio, trim the result, annotate key moments, generate a concise step guide with screenshots, and export a shareable local video.

- Build a focused single-user workflow with real persistence, search, and export.
- A responsive interface with real empty, loading, success, and error states.

## Requirements

### Functional

- MacOS or Windows screen-recording permission.
- Microphone permission.
- Ffmpeg.
- Local disk space.

### Non-functional

- Accessibility: semantic markup, labelled controls, visible focus, and reduced-motion support.
- Security: server-side secrets, validated input, and no credentials in the client bundle.
- Reliability: retries with backoff on external calls, and a clear failure state when a provider is down.
- Portability: the operator can export their data and leave without losing it.

## Implementation brief

Build a personal replacement for Tango in an empty repository.
Use Tauri 2, React, TypeScript, ffmpeg, and SQLite; do not offer alternative stacks.
The core loop is: capture a screen workflow with microphone audio, trim the result, annotate key moments, generate a concise step guide with screenshots, and export a shareable local video.
Make the first run work locally with one documented command.
Store all user data locally by default and make export straightforward.
Put secrets in .env, ship .env.example, and never commit credentials.
Offer screen, window, or region capture plus optional microphone audio.
Show an always-visible recording timer and make stop available from the tray.
Create a non-destructive trim view with crop, zoom, cursor highlight, and text callouts.
Render locally through ffmpeg with sensible H.264 and WebM presets.
Generate a poster frame, transcript, and Markdown summary beside each video.
Provide copy-file-path and reveal-in-folder actions instead of mandatory cloud upload.
Include clear empty, loading, success, and recoverable error states.
Add input validation, safe filenames, and graceful handling of unavailable APIs.
Write focused tests for the core transformation and one end-to-end happy path.
Create a README with setup, architecture, permissions, data location, and backup steps.
Do not add accounts, billing, telemetry, analytics, or a hosted control plane.
Deliberately leave out public cloud hosting.
Deliberately leave out viewer identity and engagement analytics.
Deliberately leave out enterprise workspaces and SSO.
Finish by running the tests and listing the exact commands used.

## Delivery standard

- Inspect the repository first, then write a short implementation plan before writing code.
- Deliver the smallest complete end-to-end workflow first; every primary control must work against persisted data.
- Use real validation and storage; never substitute fake dashboards, decorative controls, hard-coded success states, or mock integrations.
- Include responsive layouts plus genuine empty, loading, success, validation, and failure states.
- Keep secrets server-side in environment variables, provide .env.example, and never commit credentials or user data.
- Add structured logs around every external call and return actionable errors without leaking sensitive details.
- Write unit tests for the core logic and one automated test of the main user journey.
- Finish with a README covering setup, architecture, data location, backups, tests, deployment, and known limitations.

## Acceptance criteria

- [ ] A clean install starts the app using only the README and .env.example.
- [ ] The primary journey works from first visit through saved result, reload, edit, export, and deletion where applicable.
- [ ] Invalid input, missing configuration, provider failure, and an empty database each have a usable state.
- [ ] The interface works at 390px and 1440px, is keyboard navigable, and shows visible focus on every control.
- [ ] Tests, type checking, linting, and a production build all pass with no ignored failures.
- [ ] No part of the interface implies a live integration, security guarantee, or scale capability that was not actually built and verified.

## Non-goals

Do not build these, and do not claim to have replaced them:

- Browser and desktop capture, blur controls, team sharing, and integrations.
- Instant hosted sharing.
- Viewer analytics.
- Team libraries.
- The last 20 percent is sync, migration fidelity, speed, and edge cases.
- Reliability at the vendor's scale is an operations problem, not a prompt.

## What you still own after launch

- Run migrations, backups, restores, and dependency updates.
- Test the critical journey after every model, API, or hosting change.
- Monitor failures and fix the edge cases a first prompt will miss.

## Risk

**Operational risk.** The code is achievable; dependable data, integrations, and ongoing operations are the real cost.

Editorial confidence in this assessment: medium. No independent one-shot implementation is linked yet.

## Prior art

Working open-source software you can read, fork, or borrow from before starting:

- [Cap](https://github.com/CapSoftware/Cap) — Open-source screen recording and sharing product with modern desktop architecture

---

Generated by [Can It Be Vibe Coded?](https://www.canitbevibecoded.com) · Full report: https://www.canitbevibecoded.com/tango