I just have to point out an universal rule for lossless video cutting: "You can only limit the segments to keyframes if you want everything to work as people expect it to work"
I don't know what that is supposed to mean. If something can be built as a web page, I would just build it as a web page in the first place so that it is a thousand times smaller and still runs faster.
Is there a port or equivalent for Android? Can't see one mentioned, would love to be able to trim video and audio super quickly like this on my phone rather than having to transfer it all to my laptop first.