# Co-authored tech e-book and online course

Co-wrote a Spring Boot and AWS e-book with a companion online course, sharing the income among authors.

| Tag | Value | Confidence |
|---|---|---|
| Category | Digital products | 90% |
| Earns from | One-time sales | 81% |
| Startup cost (estimate) | $1k to $10k | 42% (low) |
| Time (estimate) | Hands-off | 80% |
| Where | Online | 98% |
| Coding | Needs coding | 69% |

Source: [Ask HN: Those making $500/month on side projects in 2024 – Show and tell](https://news.ycombinator.com/item?id=39116518), Hacker News, BjoernKW, 2024-01-24
Page: https://allsidehustleideas.com/ideas/co-authored-tech-e-book-and-online-course-0fcab7

## About this data

- Sources are public, first-person accounts: interviews, podcasts and community threads.
- Cost, time and the other tags are machine estimates, each with a confidence score.
- Income figures are the owner's own claim. We don't verify them.
- Link the idea page and its source. Call income figures the owner's unverified claim, and cost and time estimates.