- 
get the 'adb' binary: install android debug tools
 - 
Settings -> About -> Tap Build Number 7 times to enable Developer options
 - 
install a version of OpenSSL with zlib support so you can open the android backup
 
cd ~
curl https://www.openssl.org/source/openssl-1.1.1d.tar.gz -o openssl-1.1.1d.tar.gz
tar -zxvf openssl-1.1.1d.tar.gz
cd openssl-1.1.1d
./config zlib
make
sudo make install
which openssl
# => /usr/bin/openssl (this is not the OpenSSL you just installed)
ls /usr/local/bin/openssl # should return a binary that has zlib support- 
plug your phone into your computer
 - 
Settings -> Developer -> USB Debugging: On
 - 
Backup the Dhamma.org app data
 
adb backup -f ~/org-dhamma-backup -noapk org.dhamma...unlock your phone, do not enter a password for the backup, click "do the backup"
- Turn the backup into a .tar file
 
dd if=org-dhamma-backup bs=24 skip=1|/usr/local/bin/openssl zlib -d > org-dhamma-backup.tar- Get the logbook from the .tar file
 
tar -tvf org-dhamma-backup.tar | grep apps/org.dhamma/db/dhamma.org # might return errors; that's ok
tar -xf org-dhamma-backup.tar apps/org.dhamma/db/dhamma.org  # still returns errors, but it works- Run this query against the 'db/dhamma.org' file you just extracted, using any SQLite client:
 
select count(FILE_DURATION) from LOGBOOK_DATA where FILE_DURATION like '1 hr %';- TADA! You now know the total number of hours you've meditated!