Looks Umbrel will not be usable for Smart Home usage.
Homebridge is not able to update - reported 25.4.2024
NoderRed is not able to instal Homekit Bridged nodes as below:
2024-04-30T21:33:36.323Z Install : node-red-contrib-homekit-bridged 1.6.1
2024-04-30T21:33:36.344Z npm install --no-audit --no-update-notifier --no-fund --save --save-prefix=~ --production --engine-strict node-red-contrib-homekit-bridged@1.6.1
2024-04-30T21:33:36.710Z [err] npm
2024-04-30T21:33:36.711Z [err] WARN
2024-04-30T21:33:36.711Z [err] config production Use --omit=dev instead.
2024-04-30T21:33:37.232Z [err] npm
2024-04-30T21:33:37.232Z [err] ERR! code
2024-04-30T21:33:37.232Z [err] EBADENGINE
2024-04-30T21:33:37.234Z [err] npm
2024-04-30T21:33:37.234Z [err] ERR! engine
2024-04-30T21:33:37.234Z [err] Unsupported engine
2024-04-30T21:33:37.234Z [err] npm ERR!
2024-04-30T21:33:37.234Z [err] engine Not compatible with your version of node/npm: @homebridge/ciao@1.2.0
2024-04-30T21:33:37.234Z [err] npm ERR!
2024-04-30T21:33:37.234Z [err] notsup Not compatible with your version of node/npm: @homebridge/ciao@1.2.0
2024-04-30T21:33:37.234Z [err] npm ERR! notsup Required: {“node”:“^18 || ^20”}
2024-04-30T21:33:37.234Z [err] npm ERR!
2024-04-30T21:33:37.234Z [err] notsup Actual: {“npm”:“8.19.4”,“node”:“v16.20.2”}
2024-04-30T21:33:37.236Z [err]
2024-04-30T21:33:37.236Z [err] npm ERR!
2024-04-30T21:33:37.236Z [err] A complete log of this run can be found in:
2024-04-30T21:33:37.236Z [err] npm ERR! /data/.npm/_logs/2024-04-30T21_33_36_672Z-debug-0.log
2024-04-30T21:33:37.240Z rc=1
Unfortunatelly 
it looked as nice tool for smart home for customers but now is not. Basic things does not working correctlly and nobody answered question regarding issues.