lens VS hledger

They are in fact well structured and not random at all. Take a look at this:

https://github.com/ekmett/lens/wiki/Operators

A composition of functional operations over Kmett style lenses. Here's the original Haskell implementation, here's usage in JS via Ramda

The documentation of lenses is geared towards people know what lenses are. Of course this single fragment of documentation doesn't make sense if you don't know what lenses are. If you want to understand what lenses are the package links to a helpful wiki and tutorial: https://github.com/ekmett/lens/wiki/Overview

All within reach within seconds of discovering the function.

I'm surprised that there is no mentions of a great hacker-friendly plain-text accounting software called `ledger` https://ledger-cli.org/ in this thread. It has amazing documentation when it comes to understanding basic principles of double-entry bookkeeping and goes through many typical situations and usecases. There are also several forks, most popular and advanced is `hledger` https://hledger.org/ (h is for Haskell), which provides some neat features out of the box, such as a simple web interface. All of them are very primitive compared to "professional" accounting software, but in return it offers great opportunities for hacking around while ensuring validity of your books.

I've been using hledger[1] - similar tool but has more features like balance sheet, income statement generation with a plain text file for the last 3 years and it's been working out great. Before that I used iBank (rebranded as Banktivity) and don't miss it at all.

[1] - https://hledger.org

I can offer this (warning, crufty real-world scripts ahead!): these [make](https://github.com/simonmichael/hledger/blob/137d825/Makefil...) [files](https://github.com/simonmichael/hledger/blob/137d825/Makefil...) and this [bash script](https://github.com/simonmichael/hledger/blob/a3c300b/bake) have been replaced by this roughly equivalent [Justfile](https://github.com/simonmichael/hledger/blob/137d825/Justfil...) (some old things were commented out, some new things were added).

I'm only a few weeks in, and just has its own learning curve, but I'm very pleased overall. Cognitive load is down, usability is up, robustness is up.

https://github.com/simonmichael/hledger/issues/2047 . Thanks!

For help getting started or more info, see https://hledger.org and join our Matrix/IRC chat or mail list: https://hledger.org/support . Newcomers, experts, contributors, sponsors, feedback are welcome! For more about plain text accounting, see https://plaintextaccounting.org .