I's been awhile since I really dig into a new language, I think it might be the time to give it a "Go".
Start by rewriting my personal scripts which usually build upon bash or php.

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After go through Go tour, kinda remind me why I don't like AngularJS at first place.
Overall, single binary file and performance still got me, however the syntax might cause a lots confusing and I don't like it.

QIF - out-dated "COBOL" like data structure, lack of transaction/statement identifier, currency, rate and such features, however it supports split transactions.

OFX - XML structure, contains above missing features in QIF, however it has no concept of split transactions.

Reference:
https://en.wikipedia.org/wiki/Quicken_Interchange_Format
http://www.ofx.net

It's time to upgrade to iOS11 and preapre for upcoming OkidoKey 2.