Ask HN: Which productivity service do you use for personal projects?

As a current student, I have many projects which I work on for classes, hackathons, and internships. For these projects, I'm often working with one or two other students, and in the case of the many personal projects that I also work on, just myself. I often just need a place to track my own work on a project without any need for collaboration.

I currently manage these with Trello to keep track of them. While I like Trello, creating a card for a new feature doesn't satisfy me because checklists don't allow any additional information to be attached to them other than a line of text. A new board for each feature doesn't make much sense either because its overkill and hard to track with the rest of the app. For those reasons I dislike Trello and want to move to something else for my various small group projects and personal projects. However, I find that services like Asana, Flow, ProofHub, etc. are all geared towards organizations and teams (which don't work at all for my use case) and the pricing makes it impossible to purchase as an individual.

Todo lists like Todoist and Wunderlist are too basic and don't support the features that I need for programming projects (markdown, ability to handle code, documentation ability for tasks, GitHub commits) and they generally don't cater well do an application development workflow.

So my question is, with all of the more appropriate services (like Asana, etc.) being impossible to use as an individual, what do you use to manage your personal projects which don't fit an organization structure?