If you wanna try this for yourself, go to https://geysermc.org/ and download the jar from there and yes, you need a PC that has Java on it if you wanna try it for yourself! After that make a folder with the jar on it then make a (.cmd) file on it and write on the .cmd file itself : java -jar Geyser.jar; then execute the .cmd file, then on Minecraft, add a server with the ip 0.0.0.0 or localhost and the port 19132 or as you setted it on the config.yml file. Then log on your Minecraft java account and enjoy!
It is very buggy as you seen but it surely works, i don't have an alt to see what I look like on the other side so sorry if I did not included that kind of part on my video...