So this person's solution was to write a series of bespoke apps that allows them to...save bookmarks with tags? Instead of just trying Pinboard or one of the ot

So this person's solution was to write a series of bespoke apps that allows them to...save bookmarks with tags? Instead of just trying Pinboard or one of the other dozen existing products that do the same thing, or even the built-in Bookmarks which I think support tags in most browsers since many years now?