This theme is a fork of the Simply Jekyll theme , which I used for around six months before building this one. Most of the core features, like feed, wiki-links becoming hyperlinks, backlinks, etc., are slightly modified versions of the Simple Jekyll theme. I have tried not to break features from the theme, but I am not sure as I don't use many of them. Check Simply Jekyll features here.
Note feed
Jekyll garden comes with a feed-like display of all notes. There is a frontmatter value called notetype using which you can decide if notes need to be displayed or not on the feed. Use notetype:feed to show, and notetype:unfeed. Read more at The story of a hidden note
Feed as Homepage
The current configuration of this theme contains a homepage, and feed is generated at /notes. You can make the feed homepage by modifying homepage: enabled to false in _config.yml.
Content Files
To modify homepage content, edit _includes/Homepage.html. Similarly, to edit feed intro, make changes at _includes/FeedContent.html. To modify the navigation part, edit _includes/Header.html
Limitations : Tags
This theme doesn't support #tags inside the story. Tags using frontend YAML is possible, but it will be a single file index as auto-generating pages per Tag is complex using Github pages. (I might add this in the next version, if I can crack how to, and if there is a demand)
Limitations : Images
Jekyll doesn't render images or attachments inside collection folders, and it suggests /assets/img/ to accommodate all images. You can make the entire GitHub repo your Obsidian vault, but I felt it cluttered to see code along with my notes. My notes have significantly fewer images, and hence, for now, I manually paste images to assets and copy relative URLs to Obsidian. (but I am not sure if it's the best way)