I also deal with this a lot, like many others, mostly centered around logging activity, saving information and todos. I started logging my daily activity and expenses in a simple keyword-based txt format since 10 years, coupled with an ordered way to store photos, automatic pc/mobile time tracking, and service backups (chat logs, social media, etc). I started to write a simple open source platform to review all these on a unified interface, but time is short and there's always something more important.
Shaping habits sounds intriguing and rather different to this. Exemplified with the last sentence above, hard-coding specific time for 'habits' could be more effective, but it's also rather brittle if you don't have an orderly strict daily routine. This is super subjective - great systems can serve as toolboxes for everyone to compose what they need.
But the whole topic is really interesting, a wide intersection between self-development/meditation and technology. I'm really interested in the systems of others - wish 'habit engineering' or a similar term would be widely known to distinct complex lifestyle routines from the sea of generic 'productivity tips'.