update arch linux notes page (still draft)

content/notes/archlinux/index.md

@@ -1,7 +1,7 @@
 ---
 title: Archlinux
 date: 2023-11-29T20:33:48+0100
-lastmod: 2024-04-14T09:49:14+0000
+lastmod: 2024-04-21T17:15:40+0000
 tags:
   - archlinux
 
@@ -147,4 +147,24 @@ $ export WINEARCH=win32
 $ wine wineboot
 ~~~
 
+## Installing multiple ruby versions
+
+I came to the point to test an older website from me and it was made with
+Jekyll which I had to install quickly. Problems occured with OpenSSL and I
+finally managed to install ruby version 2.7.1 and 3.0.0 in my home directory.
+
+~~~console
+$ rvm pkg install openssl
+$ rvm install "ruby-3.0.0" --with-openssl-dir=$HOME/.rvm/usr
+$ rvm install "ruby-2.7.1" --with-openssl-dir=$HOME/.rvm/usr
+~~~
+
+Later in the desired directory, I re-installed the gems because with ruby 2.7.1
+I got another "Directory not found" error.
+
+I had to do this because I used ruby 2.7.1 on one website.
+
+~~~console
+$ bundle install --force
+~~~