Legacy Code

There are a lot of unmaintained, and therefore outdated sources of information.

Some things you shouldn't do:

Retrieving Parts

You used to do:

local screen = GetPartFromPort(1, "Screen")
local screen = GetPart("Screen")

local screens = GetPartsFromPort(1, "Screen")
local screens = GetParts("Screen")

These functions will be removed in future, as such, you should use their new counterparts:

local screen = Network:GetPartFromPort(1, "Screen")
local screen = Network:GetPart("Screen")

local screens = Network:GetPartsFromPort(1, "Screen")
local screens = Network:GetParts("Screen")

They function identically, but are not at risk for removal.

Event Connections

To connect to events, you used to do this:

object:Connect("EventName", function()

end)

In modern Waste of Space, you should do the following:

object.EventName:Connect(function()

end)

Configuring Objects

You used to need to use the :Configure on objects to configure them, this hasn't been the case for quite some time.

object:Configure({
	ConfigurableA = configurableAValue,
	ConfigurableB = configurableBValue,
})

You should prefer configuring objects how you would a standard Roblox instance or a table.

object.ConfigurableA = configurableAValue
object.ConfigurableB = configurableBValue