# backtrue/thinkwithblack-skill

> A set of 365 free marketing "skills" as markdown packs: you first upload INDEX.md to an AI chat, then the matching packs/*.md for your specific question, each with methods, steps and output format. Aimed at marketers and business owners without subscription budgets who need verifiable calculation and copywriting methods.

- Magnitude: 4.0 out of 10 — Early signal
- Stars: 123 total · +13 stars measured 2026-10-13, 10:07–12:28 UTC, ≈ 27 by evening
- Star trust: star growth looks organic
- Category: Productivity & self-hosted · Language: Python · License: MIT · Created: 2026-10-09 · Last push: 2026-10-11
- GitHub: https://github.com/backtrue/thinkwithblack-skill · Homepage: https://thinkwithblack.com/marketing-skills/ · Page: https://gitnova.dev/en/r/backtrue/thinkwithblack-skill

## Useful for

- Calculate a product's contribution margin by uploading the cost pack
- Draft an email subject line from existing newsletter content
- Plan a campaign budget and estimate revenue from historical data

## Why it’s here

- Star-counter measurements on 2026-10-13 (UTC), 10:07–12:28: 110 → 123 stars (+13). This is the change over that interval.
- Estimated end-of-day forecast: about +27 stars, using observed gains and the previous day.
- The repository is 4 days old and already has 123 stars. With less than two weeks of history, there's no usual pace to compare the spike against yet.
- Top new repositories this week: #157.
- About 7 forks a day — people are taking the code.

## Star trust

Star growth looks organic.

Star-trust labels are heuristics based on the repository’s behavior, not a check of every stargazer.

## Numbers

- Forks: 15
- Issues and pull requests: 0
- Watchers: 0
- Average over the last week: 25 per day
- Usual pace: too little history (under two weeks)
- Stars in the last hour (measured): 9
- Latest release: 2026.10.09-free.2 (2026-10-09)

## Stars per day, last 5 days (oldest → newest, today is partial)

2026-10-09 … 2026-10-13: 0, 0, 64, 36, 13

## Spotted in now

- Top new repositories this week: #157

## More in this category

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   Full card: https://gitnova.dev/en/r/zhuyansen/new-term-radar.md
2. **ARahim3/DigUp** — 7.1 · Breakout · Productivity & self-hosted · Swift · +224 stars measured 2026-10-13, 00:01–12:25 UTC, ≈ 476 by evening
   Search your Mac's files by what's inside them: photos, PDFs, recordings, videos and code. Runs on-device with Google DeepMind's EmbeddingGemma 2.
   Full card: https://gitnova.dev/en/r/ARahim3/DigUp.md
3. **gr8rstudio/gr8r-studio** — 5.6 · Early signal · Productivity & self-hosted · JavaScript · +98 stars measured 2026-10-13, 00:02–12:26 UTC, ≈ 184 by evening
   A web project management workspace with a dashboard, inbox, tasks, projects in board/list/table/calendar/timeline/files views, teams and settings. Built with plain ES modules and no UI framework or runtime dependencies, bundled by Vite.
   Full card: https://gitnova.dev/en/r/gr8rstudio/gr8r-studio.md
4. **DuarteSantos8/openGym** — 5.0 · Peaking · Productivity & self-hosted · JavaScript · +364 stars measured 2026-10-13, 00:02–12:26 UTC, ≈ 703 by evening
   Self-hosted gym and body-weight tracker: plan routines, log workouts (supersets, warm-ups, cardio), see muscle fatigue map, import from FitNotes/Strong/Hevy, passkey login. Your data stays on your own server.
   Full card: https://gitnova.dev/en/r/DuarteSantos8/openGym.md
5. **tonyzedginidze/librecalculator** — 4.5 · Early signal · Productivity & self-hosted · TypeScript · +6 stars measured 2026-10-13, 10:07–12:27 UTC, ≈ 26 by evening
   Free, open-source calculators for everyday, financial, construction, cooking, and educational math. Each result comes with the steps, a diagram, and a short lesson.
   Full card: https://gitnova.dev/en/r/tonyzedginidze/librecalculator.md

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Magnitude (0–10) measures how fast and how unusually interest in a repository is growing right now. It is not a quality score.
Days are UTC. “So far today” is a fact; “expected by the end of the day” is a forecast.
Summaries and use cases are written by an LLM (DeepSeek V4.1 Flash) from the README and may be inaccurate: verify specific claims (benchmarks, speed, hardware) in the repository itself.
Data as of 2026-10-13 12:43 UTC, updated every 30 minutes.