Toxic Avenger

can a text form field validate a url in such a way that it filters whether I have inserted a youtube channel and not a single video that is on the channel? ..in this case the ...

Does anyone have an idea or a comparison of how big the same app with getx and bloc will end up being in megabytes? would it be about the same size, or much smaller or larger?

Does anyone know how I could do it, that a different picture is displayed for each month? for example in january we show something with snow etc.. a code e.g. would help me,...

What kind of widget? A toilet brush holder widget?