Reset admin password by putting this in the database password field - password is then “secret”.
d2064d358136996bd22421584a7cb33e:trd7TvKHx6dMeoMmBVxYmg0vuXEA4199
Documented in detail by Claude
Listed in this document
These links (now a bit old) have relevant stuff:
https://joomla.stackexchange.com/questions/31529/share-code-between-component-templates
https://docs.joomla.org/J3.x:Sharing_layouts_across_views_or_extensions_with_JLayout
https://phproberto.com/en/13-jlayout-improvements-for-joomla-3-2