I tried every todo app and ended up with a .txt file

Eh, I don't know. I wouldn't paint with such a broad brush here.

Regarding productivity/to-do systems: on one hand I agree -- I know a few people for whom it's clearly a form of procrastination and really just need to get on with it. On the other hand, I myself was one of those people, but in hindsight I just hadn't found the right system yet and had real, legitimate issues with the systems I had been trying. Turns out, YouTrack is damn-near perfect for me. I use it both for work and for my personal life and I really, really love it, even for basic to-do lists. The things I was missing from standard to-do lists was the concept of relationships ("depends on," "blocked by," etc) and the ability to schedule multiple projects together on a Gantt Chart. Put those two features together and what needs to be done when and in what order is pretty much inarguable, which is precisely what helps me stay productive, as looking at a huge list and feeling overwhelmed about what to do next -- especially if I'm trying to be efficient or strategic -- freezes me in my tracks.

Regarding second brains: I completely disagree that they're not useful. My Obsidian vault is genuinely one of the single most useful things I have ever done for myself. There's nothing fancy about it, I don't use most of the features, but having a massive vault full of notes is truly indispensable in knowledge work.

I'm not sure why you'd propose google docs to someone who uses CLI to handle their todo. Sounds like the polar opposite to that solution.

I've got to tell you that I don't think people like gwern.net and andymatuschak.org are procrastinating. A lot of these people are very productive in public. Walking through their zettel-sites is like walking through their minds. The best thing zettel-people have done has been to assume that everything that you're writing that was clearly inspired by something else should reference and direct link that thing. I really think we should caching and redistributing our references too, but the law...

The stuff they, and many smart people like them, are putting in their public notes are sometimes becoming the authoritative bibliographies of little specialized subjects. Their notes get referenced in journal articles.

edit: also, as far as I know, the goal of having a Zettel system is to be as lazy as possible. To have all your notes extremely networked so you can find them pretty quick, you can get surprised about what's in them because old stuff gets surfaced, and you can always find a place to add the thought you're having or the notes you're taking. You save all of that time digging though stuff and filing stuff and losing stuff, which you can use to take a walk in the park or something. To accidentally write a few books just because you had all your notes about some goofy subject you're obsessed with in one place and one day you're like "that must be about a quarter million words."

edit2: also, also, this conversation is very quaint. 10-20 years from now we will all have zettelkasten and we will never look at them at all because we will use AI to interface with them. I'm sure thousands are already in that world, I'm certainly working on getting there.

I use notepad ++

I use a simple process based on Jira. I added a custom workflow that easily allows me to create tickets with all the mandatory fields I want, such as business priority, criticality and risks.

Then I plan my todos semi-yearly using epics and backlogs. I spent a whole lot of time carefully deciding what I'll do day by day in 4 months, so that I can use it as a baseline I can ignore and re-adjust it day by day.

Every week I review all my todos and assign them point. I usually involve my partner so we can have a healthy discussion on how many points a todo is worth, and whether we should switch to tshirt sizing instead. I usually plan between 1.5 and 2x the amount of todo I'm actually capable of doing, because I like stretch goals. Then I spend the week working on the todos. I built an automation that sends me messages to ask why such and such todos are not moving fast enough. I also built automation to spice things up a little and ask me to get a privacy review on some of the items, or to start the process on those todos again because I forgot a step or something.

I start every day with a 1/2h to 1h meeting where I explain what I didn't do the day before, and what I won't do today either because I'm blocked for some reason. I used to do it with my dog but nowadays I use copilot chat because its reassuring tone gives me the impression that it matters.

At the end of the week I put back the todos I didn't do in the backlog. At the end of the week I build a status report that I then present to my partner. She's usually asleep when I do that but she insists that I go on and give that weekly status, that she usually closes with "bottom line, you underachieved again". Helps keeping me humble.