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Z-Wave Long Range and its mile-long capabilities will arrive next year - Ars Technica
(arstechnica.com)
Home Assistant is open source home automation that puts local control and privacy first. Powered by a worldwide community of tinkerers and DIY enthusiasts. Perfect to run on a Raspberry Pi or a local server. Available for free at home-assistant.io
I'd rather set up a point-to-point wireless link with directional antennas and exactly two base stations than rely on every little IoT device having long range. Better yet, such a link could be high-bandwidth and capable of handling things like data backups and Internet access failover.