cheap alternative live streaming option needed

I have a website based on playtube you can find it here
https://codecanyon.net/item/playtube-the-ultimate-php-video-sharing-platform/20759294
and you can find its docs here
https://docs.playtubescript.com/#idocs_faq
the script is built on Pure PHP code,the script has a live streaming option based on agora intergration and I hate it,its extremely buggy,thus the need for a alternative live streaming option for our site's users.
Im thinking something open source,I dont want to pay for anything at this moment and Im also open for suggestions like perhaps the use of api service such as
https://developers.restream.io/docs or
These the open source options I found for it,you decide which one would be great choice to use

https://github.com/videowhisper/PHP-Live-Streaming-Webcam
https://github.com/videojs

https://developers.restream.io/docs

Also Im also open to if you want to create it from scratch .I can also send you a copy of the script once awarded,so you can look it over.

Note,Im on a very tight budget,so any quote above the stated budget will be IGNORED!