guides VS nut

for server hardware i use https://github.com/seth586/guides/blob/master/FreeNAS/bitcoin/README.md but it's not a user friendly package

For those running FreeNas/TrueNas this guide is an excellent resource for standing up a Bitcoin/Lightning node https://github.com/seth586/guides/tree/master/FreeNAS/bitcoin

Here is a guide for a more powerful setup than the typical Raspberry Pi nodes: https://github.com/seth586/guides/blob/master/FreeNAS/bitcoin/README.md

Have you looked into zfs? Here is a guide using it on TrueNas but I believe it could be set up on a pi if desired.

My home lab is a TrueNAS server I put together with used parts about a year ago. While I've been running a bitcoin full node for years in a Linux VM, I ported it to a FreeBSD jail when I setup the server at the time. It wasn't a big stretch to throw a lightning server on top of that. Incidentally, after setting up my lightning node, I discovered that someone else had essentially done the same thing: https://github.com/seth586/guides/tree/master/FreeNAS/bitcoin. That guide inspired me to get RTL up and running for a pretty GUI.

> what software do you recommend for gnu/linux to take input from the UPS to tell the laptop to shutdown?

https://networkupstools.org/

The Synology software is based on N.U.T. https://networkupstools.org and the Plus 1100 (listed on NUT as the Easy Power 1200) is supported in the native package with the 'blazer' driver. If you have the skills, I would SSH into the NAS and see if the device is 'noticed' or better yet recognised by the USB sub-system when you plug it it. (Normal Linux would use the lsusb command to see devices but I have no NAS handy to see if this is valid on the Synology)

Others have answered the hardware part of your question. I have not seen much mention about the software to control graceful shutdowns. For this I suggest you look at the ”Network UPS Tool” (NUT for short) project (https://networkupstools.org/). It is mostly manufacturer agnostic with clients for a vast array of hardware components.

You're looking for NUT.

Network UPS Tools is one option: https://networkupstools.org/

APC is giving me pre-nut clarity.

So no, the NAS does not monitor the battery level. The UPS does that. The NAS just acts on the messages it receives from the UPS via Synology's version of NUT - Network UPS Tools (https://networkupstools.org/). The NAS will first receive the ON_BATTERY/POWERFAIL signal. Then, eventually the BATTERY_LOW signal at which time the UPS will shutdown. So you really need to set a time for it to shut down *BEFORE* you get BATTERY_LOW.