Feature request: persistent weak-letter tracking with a separate "practice weak letters" test

[ripasso]

I keep making mistakes on the same letters, but there's no good way to drill them other than 'practice words' that only persists throughout one test. I noticed that there is a 'weakspot' funbox also which gets refreshed after a reload, and it changes the words in your normal tests.

I am suggesting a passive tracker that:

1. notes down for each letter:

• how many times it was typed;
• how many of those were mistakes;
• the average time taken;
• which letter was typed instead (e.g. r → t).

2. doesn't change the words in your normal tests like 'weakspot' does, and it gets synced to the account so it can persist if the user likes (there should be an option to turn it off if someone doesn't wish it to be tracked).

3. has a keyboard heat map similar to keybr.com where you can see the success rate of each letter, and also pick a time range that you would like to practice your wrong letters/words from: the past day, week or month.

4. counts towards your stats similar to 'practice words' which appears after every test as a custom test type.

[vibhor1102]

I built a small Chrome extension that covers part of this: persistent per-character attempts, mistakes, and substitutions, without changing the words in your normal tests. Mistakes you correct with Backspace still count.

It adds a Typing mistakes page inside Monkeytype, using your theme and font. Stats stay in your browser, and you can export a backup.

Source, screenshot and download: https://github.com/vibhor1102/monkeytype-local-analytics

It doesn't include account sync, timing analysis, heatmaps, or automatic drills. Installation uses Chrome's Developer mode and updates are manual. I've tested it on Linux Chrome; other platforms haven't been tested yet.

Sharing in case the tracking part is useful while the broader feature is being considered.

[ripasso]

This looks interesting I will take a look