Alternatives to CRISP-DM for solo projects

I am wondering if there is a data science methodology/model for working that is less prescriptive/detailed than CRISP-DM but still a framework of sorts that is less generic than, say, Agile, or using kanban.

My motivation for asking is that I have a number of projects where I will be the only one working on them and the outputs are clear to me, however I would still like to ensure there is some rigour, process and to an extent, credibility (in terms of checkpoints, or interim outputs) in how I go about my work. Hope that's clear!