010101 kishor There’s no super easy way. But, I made this old extension to add certain attributes to external links. See this line: https://github.com/zerosonesfun/elint/blob/ee072483808a185cad479b13ab95e54a5bbb3d99/extend.php#L37 That line adds the attributes like no follow / do follow / user generated content / etc. An option is try this extension but edit its extend file and adjust the attributes to your liking.
luceos One could also add this to the extend.php in the Flarum root folder (next to config.php). I think it would make sense to either have a generic "how should links work" extension or integrate something into core.
Wellwisher 010101 this is actually a really good mod. Great for SEO. Thank you. Typically you'd want all your internal links to be "follow" and external lists to be no follow. I like the "open external links in new tab" feature.
