SqMod is capable of loading scripts written for the Official Squirrel plugin. And for external plugins, such as MySQL, Confloader, yadda yadda... you can use SqMod's features to replicate functionality.
The Compatibility layer subdirectory has all you need for such case.
SqMod no longer supports external plugins, however you can use ZeroMQ for inter-process communication.
The Discord subdirectory provides a template to get a discord bot running for your server with minimal effort.
Want to run SqMod inside a Pterodactyl container? Build a docker image with the Dockerfile. An egg designed for official plugin should work here too, just change the container image.
The module
https://github.com/VCMP-SqMod/SqMod
https://forum.vc-mp.org/index.php?board=40.0
Snippets and examples
https://github.com/VCMP-SqMod/SqMod-Snippets