There are a few of us still running Homeseer 2 @Produdx.
Personally here running two W2003 32bit HS2 Virtual boxes on Ubuntu 22.04. I am using them mostly for running two Way2Call boxes connected to two VOIP lines. Using a CID announce and blocking script integration to HSPhone from years ago. I used to run HS2 as a service too. Today not doing this. You can also run the Ocelot and connect that to a TW-523 or Jeff Volp's dual phased TW-523 emulator which I am doing today for my HAI OmniPro 2 panel. Keep the Elk
ESM1 on line 24/7. Also still using the old CheaperRFID plugin for RF Tags in the automobiles. Have the W800 / RFID devices and Antennas mounted in the attic (using an old RS antenna) with serial connectivity going down two floors to the basement server rack. The 12VDC RF tags are mounted in the headliners of the automobiles. BTW found some LoRa transceivers that work for miles (1 watt and not really FCC approved). Also utilize MQTT tracking here for Android phones using OpenVPN connectivity to home.
The Homeseer X10 plugin has been much improved for HS3/HS4 with diagnostic data views. Way back purchased a "few" Digi Edgeports (8 and 16) and they work just fine directing them to different serial ports on the VBs. Each VB is around 20Gb which does make them portable. There is another VB on line with multiple MS SAPI voice fonts running with multiple instances of Homeseer Speaker app. The VR/TTS is not cloud based and works fine.
With HS3-4 have moved these days to Ubuntu with Mono running. Some pieces run in Windows virtual boxes. These pieces manage my Wintel tabletop touchscreens with MS SAPI. I could only get Windows SAPI running in PlayonLinux but it is not as good as running SAPI on Windows.
IE: one home is running mostly UPB powerline for light switches (do have ZWave-Zigbee on line). OmniPro 2 panel.
Second home is all wireless these days with Tasmota firmware WiFi switches, Ring Alarm et al using Home Assistant and a bunch of Alexa devices for TTS.
BTW you can pick up the Lenova Tiny M93 M900's for less than $100 these days. Here running one for Zoneminder and another one for Blue Iris, LMS/MythTV (Ubuntu) and a couple for W2016 RDP servers. Still running HS3-4 on mITX boards and switching these to Lenova Tiny's.
NAS box is running BSD using SAS drives these days. PFSense is also running in BSD and now upgrading the PFSense box to having 10 Gb interfaces. Very stable stuff. Much like Linux these days. I prefer to run Ubuntu on my desktops and laptops these days and dual boot them to Windows 11 (to become familiar with it). To me Windows 11 is just a colorful advertisement to the Internet especially if you surf the web with Edge. Chrome is a bit better. Firefox is still the best for me. I have my Android phones doing OpenVPN to home and using the PFSense firewall to surf the web.
Still utilize W800's X10 wireless PIRs mostly to test hard wired PIRs these days. Recently been tinkering with long range 433Mhz PIRs connected to a Tasmota wireless hub. The batteries on the MR16's last for years. Getting more than a year on the newer 433Mhz outdoor PIrs. Best though for me are Optex wired outdoor PIRs.
Newest automation box runs Homeseer 4 and current Home Assistant. Homeseer 4 talks MS SAPI and Home Assistant both talk MQTT these days.