@aheydorn Personally if I’m you I’d look to download the FLAC files from the computer to an external drive and connect that to the streamer (the Node can do this BTW) so you can have all your music along with your streamed music combined in the same place and no need for the computer anymore — all your music will now be accessible via the streamer’s app, which is a beautiful thing. All you’d need is to run a USB cable, which you obviously already have, from the streamer to your DAC. Also, you should avoid running your streamer with Wi-Fi for both better sound and signal reliability, and this can be done easily by getting a Wi-Fi extender from TP Link, etc. or a Mesh system (Orbi, etc.) and then running an Ethernet cable from that to your streamer — much better, relatively inexpensive, and easy peasy. Be excited as your music enjoyment is about to expand exponentially!
Just to clarify some terms because it can be confusing, a streamer just streams music in real time from a streaming service/source whereas a server stores music that can then be transferred to another device. There are combo streamer/servers that stream and also have onboard storage so you can load files directly into them (the Bluesound Vault does this as do units from Innuos, Aurender, etc.) so there’s no need for an external drive, which is really nice. This may not be 100% technically correct but it’s how I understand/define it in my very rudimentary way and hope it’s helpful.