Use homemoney.ua public API to remind about expenses for current month by twitter DM
You will need to create a twitter account and an app. Then fill config file.
cp config.json.template config.json
npm install
npm start
To edit crontab execute
crontab -e
Add following lines
# run command at 11AM every Sunday, Wednesday and Friday
0 11 * * 0,3,5 (cd ./path/to/project/dir && npm start)