After considering some details, the RSS-based search feature from @akgnah will not be merged into master branch. The dev-search branch will be retained.
As the theme is for pure blog content which has its taxonomy system, to keep it simple the search function is not a necessary feature.
When it comes to over 200 posts or more (if), the pagination will become essential for a minimal theme. Without Hugo's built-in pagination template, the vanilla JS works and CSS styling about searching gets more complicated.
Some more problem with multilingual features under development.
Recommendation
If you want to add search feature to your blog, you can:
Create a layouts folder in your site's root folder and add templates like #18, to cover the theme's template in themes/fuji/layouts.
After considering some details, the RSS-based search feature from @akgnah will not be merged into master branch. The dev-search branch will be retained.
Sources
18
Details
Recommendation
If you want to add search feature to your blog, you can:
layoutsfolder in your site's root folder and add templates like #18, to cover the theme's template inthemes/fuji/layouts.Annotations
Thanks @akgnah for advisement.