[Discussion] Learning to Develop Jailbreak Tweaks in 2017

Hi, I hope some jailbreak developers are reading this...

I'm a Software Developer (specifically Web related stuff) and I'm interesting in developing Jailbreak Tweaks, I've been in the world of iOS since a couple of years ago, and of course jailbreaking and installing a bunch of tweaks since then on different devices that I have had.

• Since I don't know either Objective C or Swift, which one would you recommend me to learn and why?

• I'd also like to know if there are any other resources/info/books or whatever besides theiphonewiki that you recommend.

I really appreciate any kind of information that you give me, thanks.