https://vyos.io/ might be what you're looking for.
It looks like maybe this project forked after the purchase by Brocade.
As a side not Vyatta is the base OS in many of the Ubiquiti Networks routers. It's quite nice for small office/ home office.
It was forked in 2013 (renamed VyOS) and is under active development as a free open source project.
I'm running a VyOS machine (old desktop with a couple of NICs) which handles the traffic for our Copenhagen office. That's ~15 CI boxes, and 30 people. This is on a 100/100 connection.
For Ubiquiti, I'm a fan. I helped our co-working space setup a network on another floor, and we used an EdgeRouter Lite to handle the 200/200 connection. The ERL handles it without breaking a sweat. That's for 60 people on a daily basis.
For another building, I just finished setting up an ERPro (the 8-port rack-mounted version). It's again on a 200/200 connection, and for roughly 150 people on average, with a maximum around 300-500.
At home, I have an ERPoE, which handles my home lab just perfectly. I'm only on a 100/100 uplink at the moment, but will be upgraded to 1000/500 soon, and I know the ERPoE will handle that just fine as well (thank you hardware offloading ;)). 5 VLANs with full firewalling and routing between them, native IPv6 with prefix delegation, mDNS proxying between VLANs, OpenVPN handled by the router. I could do a lot of this with OpenWRT on an Archer C7, but the ERPoE is simply miles ahead.
The UI is nice for newcomers, and the CLI is amazing. I fell in love with the CLI on VyOS, and am very happy to see the same in the UBNT products. For $100, they are amazing devices. VyOS is my go-to choice when I need to have a virtual router.
i currently have pfsense running on a mini quad NIC box (https://m.aliexpress.com/s/item/32670582442.html)
do you think vyos will run on this stuff. in your opinion are pfsense and vyos generally at par?
The ERL is $100, and comes with Ubiquiti's EdgeOS, which is largely based on VyOS (or something like that), and simply adds a (decent) web UI, and hardware offloading. This means that the ERL which runs on a dual core 700Mhz MIPS CPU can route 1Gbit/s, and not even break 30% CPU utilisation.
Where VyOS shines is when you need to cobble together a bunch of things. If you just need a pure firewall, I would probably stick with pfsense, as that is, after all, what it is good at. VyOS only offers iptables with some lipstick (which is well enough for a Swiss-army knife setting)
I guess VyOS would run on that box. I can't see specs, nor know what network chipset it is rocking, but I don't see why not.