Hello there, is it possible to add to the license under which this repository is distributed?

Hi I used your site for a few days at a 15WPM setting and it worked fine at the speed I was keying but at higher speeds it seems to not properly register an appropriate length dah (3x the length of the dit) instead it feels more like I have to give 5-6 times the dit duration for it to register a dah. It's just so much more convenient to be able to pull up a webpage on any device than to have to download and run a specific application on every device. Also when comparing to locally installed morse keyers for windows and android their respective settings for 10 WPM roughly match the setting on the site at 30 WPM. To be clear I greatly appreciate you making it available but with just a little tweak I think it would be a lot better feeling practice tool. From going through most of the code it looks like the issue is here:

/learn-morse-code/tree/master/src/useStraightKey.js

and the specific section of code is:
// DitDah Length
const ditMaxTime = 1200/wpm * 0.3
const letterGapMinTime = ditMaxTime3
const wordGapMaxTime = ditMaxTime7

It would be better to switch the WPM setting to a text field in MS with a guess as to what WPM the set MS value correlates to eg. 80 MS dit and 240 MS dah for 13 WPM (according to CW communicator at least)

Wonderful site! Any chance of implementing Mode B for paddle input?

Also, how do I build this project (so that I may implement this myself)?

Hello, Mr. Mecija This app you have made has helped me tremendously to learn Morse code I knew nothing a few weeks ago, but now I have a reasonably good understanding of a lot of the letters. I am, however, very rusty at the punctuation and other symbols and would like to see a challenge added to make learning easier. Thanks again for making such a wonderful app.