>>2712255The beads are there only so you don't pull the loop completely into the rope. I personally use Dutch's whoopie hooks instead of the beads so that I don't need carabiners to connect my hammock to the suspension, but I had to import them from the US.
For a simple adjustable ridgeline you can just use a whoopie sling (guides for those seem to be easier to find than ridgelines, just be sure to make one long enough) and add some basic clips or buckles to keep the tail from hanging loose. Just a though, normal whoopie slings tend to make the non-adjustable part as short as possible, but you can make one that's like 2m long and with a shorter loop at the end to let you adjust from 2 to 3 or how much you think you might need.
Basic splicing resource (you don't need the dedicated tools, you can use a piece of wire bent double and an old pen):
https://www.youtube.com/@Premiumropes/playlistshttps://www.youtube.com/@jeffmyers7062 makes some nifty things out of dyneema but a lot of his designs are overengineered solutions in search of a problem.