Use my own node in my mobile wallet

full image - Repost: Use my own node in my mobile wallet (from Reddit.com, Use my own node in my mobile wallet)

Hi.Could anyone explain to me, step by step, how can I set up my node (running in my PC) for connecting to it from my mobile wallet? How do I open my node for using it in another device and another internet network?

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Mining:
Bitcoin, Cryptotab browser - Pi Network cloud PHONE MINING
Fone, cloud PHONE MINING cod. dhvd1dkx - Mintme, PC PHONE MINING

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Exchanges:
Coinbase.com - Stex.com - Probit.com

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Donations:
Done crypto