Thanks for this project. I found SingleFile a year or two ago, and used it to take "HTML Screenshots" of third party sites I could embed in guided walkthroughs with modified/example data changed, instead of just PNGs.
SingleFile was ultra-valuable for this.
If anyone has a similar use-case, I wrote some pretty rough (and slow) code to post-process SingleFile's output to remove any HTML that wasn't contributing to the presentational render by launching puppeteer and comparing pixels. It's available here: https://github.com/mieko/trailcap
One very useful thing you could add to this (if you feel like it) would be to make it work with snapshotted directories, rather than a single HTML file with inlined data. You can get the former with SingleFileZ and then extracting the resulting zip file.
I like these because it makes it easier for me to make manual edits when necessary and it's a better solution for long term archiving (IMO). But I would love to add your project to my workflow.
SingleFile was ultra-valuable for this.
If anyone has a similar use-case, I wrote some pretty rough (and slow) code to post-process SingleFile's output to remove any HTML that wasn't contributing to the presentational render by launching puppeteer and comparing pixels. It's available here: https://github.com/mieko/trailcap