yyyy-mm-dd.md files in markdown format. Managed as a private git repo. Because I use multiple machines, git helps me with easy backups, merging, and version co

yyyy-mm-dd.md files in markdown format. Managed as a private git repo. Because I use multiple machines, git helps me with easy backups, merging, and version control. I just use my OS's default plain text editor for writing. I prefer markdown instead of plain text because it allows me to link to images. Images are stored in yyyy-mm-dd/ directories. All these decisions were motivated by my long-term goal to make my journal easy to own, read, process, and pass down two or three decades down the line. That goal pretty much rules out any kind of third-party service or specialized journaling application. git is the exception but I always have an accessible version even if git disappears.