Hello hello! 
I made SimpleToasts, a toast notification library for my Roblox games and thought why not share it with the community!
Showcase
Here’s a quick visual showcase before explaining all the current features in detail:
Features
Stacked piles : newest toast in front, hover (pc) or tap (mobile) expands the pile to see each recent toast notification.
Auto-dismiss : each toast has a lifetime (configurable), when it ends the toast closes. Hovering or tapping the pile pauses the lifetime of the toasts, allowing the player to take their time to read. There is also a manual close option if the player doesn’t want to keep the toast on their screen.
Five severities : success,info,warn,error,secondary, each with its own colours, icon, and sound (optional), fully overridable per toast viacustomTheme.
Six positions : top-left,top-center,top-right,bottom-left,bottom-center,bottom-right.
Server → client bridge : fire toasts from the server with Toast.notify/Toast.notifyAll
More details can be found on the README.md of the github repo.
Installation
Available via Wally
Or grab the source on the GitHub repo.
That’s it!
Let me know if you try it and run into any bugs or have feature ideas, feedback is more than welcome!