A PTT on the web remote. The remote page gains a key you hold from a phone or another machine on the network. It works only while a transmitter is open and the TRANSMIT page is on the FoxSDR screen, it cannot latch (the latch stays a hands-on control), it drops by itself two seconds after the remote stops asking, and everything that releases a local key releases it too, including closing the page or stopping the web remote. The page shows the same licence sentence as the TRANSMIT page.
No Pluto has been on the desk this was built on, so nothing was keyed here: the refusals were exercised live and the key itself is proven against a recording sink. The first press from a phone into a dummy load is the test that counts.
SHA-256 of foxsdr-setup-0.95.1.exe:
64f0e193ab3252d2b231038d1436a60783a318436b28c91fcb267138960d5050