This dictionary was built using data from Reta Vortaro.
You'll need Python 3, xlstproc and kindlegen to generate the dictionary.
git submodule init && git submodule update
pip install -r requirements.txt
./process.sh
# this will generate the .mobi file
./kindlegen output/vortaro.opf
The .mobi file can be found in the Releases section.
Then you can upload it or email it to your Kindle.