Hi,
i redirect you to a topic i opened some time ago, where i tried to describe the steps i took to write a Kindlet.
https://www.mobileread.com/forums/sho...d.php?t=185834
The thread contains a bash script, that i used to sign my jar.
(I recommend using the developer-test-key, so we do not have to deal with an endless growing developer.keystore)
For me a bit cryptic, but also very helpful:
https://www.mobileread.com/forums/sho...d.php?t=102386 (K3?)
There are some Differences, for which Kindle you want to develop Kindlets.
Greetings
Matthias