Hi,
I too had an old site that was on Blogger, like you I got fed up with the maintenance and the sometimes unhelpful way Google Blogger didn’t seem to be that well supported. I switched to Publii and it has been a bit of a revelation, I have to add I am not a coder, but managed to get my site up and running (surprisingly) really quickly.
So, Publii offers several ways to Post you can use as you say Block Editor, but also Markdown Editor or WSIWYG Editor. I had several hundred posts and was able to copy the HTML from my Blogger Posts and simply paste it into the WYSIWYG Editor in Publii by the following steps:
- In Publii select Posts, then select the Add New Post button.
- From the drop down choose WYSIWYG Editor
- Once the Post form is loaded add in your Title and then choose the HTML button from the toolbar
- Simply paste your raw HTML Code in, it does have a ‘Beautify Code’ option (if you want it ‘tarted’ up)
- Select the Apply changes button and then choose Go Back and the code should be loaded in place
- Alternatively use the Markdown Editor and again paste in your HTML
I admit in your case you may have to perform that a lot of times, but it is a lot quicker than typing it all out again. There is a Publii option to import but only from WordPress at the moment.
Hope it may be of some help and looks like a really interesting website you have and would be nice to see it on Publii where it could get some ‘Publii Love’ 🙂
Other than the suggestions I have made perhaps some of the other people on here may be able to give you some other advice (they are a friendly bunch!)
Regards