How to Make a Relative Post Query that is Based on Tags

Hello, a bit complicated query needed. I wanna make a relative post query that is based on tags.
Every post document has a field called

tags

that is an

array

of

strings

.I want to query every post that contains a specific tag

string

. Is that possible in GROQ? Maybe the built in functions can help in this case.
Logic would be:

Pass the tag you’re looking for as a parameter to your query, and use the

in

operator to check its existence in an array.

Oh, this easy? 😄
Thank you, it worked!

Lovely! ❤️