Here's a list of the most frequently-requested native libraries that Servd actively doesn't support:
wkhtmltopdf - this library has been abandoned due to its reliance on another package called qtwebkit which was abandoned in 2015, and the author's recommendation is to not to use it moving forward. It also has some critical open exploits that haven't been patched, some of which are particularly nasty for a cloud hosting provider like Servd (e.g. https://github.com/wkhtmltopdf/wkhtmltopdf/issues/5249). We generally recommend using DomPDF as a PDF generator instead.
ffmpeg - as Servd's project servers are optimised for serving web traffic, they don't have the GPU resources that ffmpeg requires to efficiently transcode videos. Consequently CPU is used instead, which invariably uses 100% of a project's CPU resources and prevents PHP from quickly responding to requests. We'd recommend making use of a third-party, off-server video service instead, such as Cloudflare Stream, Bunny Stream, etc.