This is a developer level topic and isn’t required reading for normal usage of North. If you’re interested in theme customization at a code level and want to find out about action hooks, see Using Action Hooks in WordPress Child Themes.
North offers the following action hooks for you to use:
header.php
siteorigin_north_content_before
Inserted after the #masthead and before the #content container.
siteorigin_north_content_top
Inserted after the the first .container div in the header and before the start of the #primary div.
View header.php on GitHub.
footer.php
siteorigin_north_footer_before
This hook is located after the close of the #content div, immediately before the start of the footer.
siteorigin_north_footer_top
This hook is located immediately after the footer div opening.
siteorigin_north_footer_bottom
This hook is located below the .site-info div.
View footer.php on GitHub.