Jekyll is now compatible with ruby3

Gemfile

@@ -8,26 +8,27 @@ source "https://rubygems.org"
 #
 # This will help ensure the proper Jekyll version is running.
 # Happy Jekylling!
-gem "jekyll", "~> 3.8.3"
+#gem "jekyll", "~> 3.8.3"
 
 # This is the default theme for new Jekyll sites. You may change this to anything you like.
-gem "minima", "~> 2.0"
-
-gem "jekyll-remote-theme"
+# gem "minima", "~> 2.0"
+# 
+# gem "jekyll-remote-theme"
 gem "just-the-docs"
-
+# 
 gem "webrick"
-gem "github-pages"
-gem "rexml"
-gem "jekyll-spaceship"
+# gem "github-pages"
+# gem "rexml"
+# gem "jekyll-spaceship"
 
 # If you want to use GitHub Pages, remove the "gem "jekyll"" above and
 # uncomment the line below. To upgrade, run `bundle update github-pages`.
-# gem "github-pages", group: :jekyll_plugins
+gem "github-pages"
 
 # If you have any plugins, put them here!
 group :jekyll_plugins do
-  gem "jekyll-feed", "~> 0.6"
+  # gem "jekyll-feed", "~> 0.6"
+  gem "jekyll-spaceship"
 end
 
 # Windows does not include zoneinfo files, so bundle the tzinfo-data gem

_config.yml

@@ -1,10 +1,14 @@
 title: Phantasus 
+repository: ctlab/phantasus
 
 plugins:
-  - jekyll-remote-theme
+  #- jekyll-remote-theme
   - jekyll-spaceship
-remote_theme: 
-  just-the-docs/just-the-docs@main
+
+    # remote_theme: 
+    #   just-the-docs/just-the-docs@main
+
+theme: just-the-docs
 
 kramdown:
   toc_levels: "1,2,3"