Install WTF
You can find WTF on Moddb and Github. Use Moddb for the latest stable version.
MCM is a hard requirement for WTF. Other than that, there are no dependencies.
WTF comes with a core framework and a few task packs bundled together. You should always install the core (named Weird_Task_Framework), and you can freely choose which task packs you want. Since all the quests can be disabled via MCM, feel free to install all of them and disable the ones you don't want.
WTF uses quite a few techniques to avoid mod conflicts. Feel free to install it anywhere it your load order, I won't judge.