によるBy means of, According to, Depending on, Because of, Due to

でできる・からできる expresses that something is made or composed of a certain ingredient, e.g. この家は木でできている ('This house is made from wood.'). In one usage, によって can be used with verbs like 作る or できる with a similar meaning, e.g., 木によって作られた家 'a house made from wood'. In other uses, によって can also mark the person or method by which something is made, while でできる・からできる cannot.

Both derive from よる ('to be based on'), but are used differently. によると・によれば means 'according to' and is used to report information, e.g. 天気予報によると雨が降るそうです ('According to the weather forecast, it will rain.') によって・による often means 'depending on' and has broader uses, including cause, method, or basis, e.g. 人によって考え方が違う ('Ways of thinking vary depending on the person.')

Both can express cause, but with different perspectives. ために often reflects the speaker's point of view, e.g. 試合は台風のために中止になった ('The game was canceled in light of the typhoon.') によって typically conveys an external or objective cause, e.g. 台風によって多くの家が壊れた ('Many houses were damaged due to the typhoon.')

Both express variation depending on conditions, and 〜かは〜によって違う includes によって as part of its structure. The key difference lies in grammatical structure: 好きか嫌いかは人によって違う ('Whether someone likes it depends on the person.') vs. 好き嫌いは人による ('Likes and dislikes depend on the person.')

Both describe how one thing leads to another, but with different nuance. 次第 emphasizes immediacy, e.g. 方法が決まり次第連絡します ('I'll contact you as soon as the method is decided.') によって・による shows variation or dependence, e.g. 方法によって結果が変わる ('The result changes depending on the method.')