Home assistant?, ifttt?, raspberry pi with zigbee/zwave module?, smart devices with web hooks? You probably can control most smart devides with web apis, check

Home assistant?, ifttt?, raspberry pi with zigbee/zwave module?, smart devices with web hooks? You probably can control most smart devides with web apis, check out home assistant code for that... But they go to manufacturers portal. Too bad most manufacturers have an interest in you paying them subscriptions...