Digit - SMS bot that monitors your bank account & saves you money
Home-Assistant.io - Home Assistant is an open-source home automation platform running on Python 3.
Quicken - Stay in control of your monthly cash flows, budgets, and expenditures. Quicken provides a navigable interface where you can organize your debit, credit, and savings, and build good habits accordingly.
ioBroker - flexible and modular application for the IoT and Smarthome
Penny - Penny is a personal finance app that takes the pain out of keeping track of your finances.
openHAB - "empowering the smart home" - vendor and technology agnostic open source home automation