# indiehack.in tutorials > Step-by-step instructions a coding agent can follow, one for each tutorial episode of the indiehack in YouTube channel (https://www.youtube.com/@indiehackin). indiehack.in (https://indiehack.in) is the home of the indiehack in YouTube channel, which covers business, AI and tech for people who build software, in Mandarin. Each tutorial names a public repository, a skill folder and the file to read first. Fetch a tutorial's .md link for plain Markdown; the same address without .md is the HTML page. ## Tutorials - [Rebuild a real city block in 3D from open data](https://indiehack.in/tutorials/city3d.md): The skill pack behind our Shibuya Crossing episode. Point your coding agent at it and make your own open-data place video. ## Optional - [Tutorials, as a web page](https://indiehack.in/tutorials) - [indiehack in on YouTube](https://www.youtube.com/@indiehackin)