I didn't see a thread on this, but it looks like PATH is starting to accept contactless a la "TAPP"
https://www.panynj.gov/path/en/modernizing-path.html
I tried it out at Hoboken and it seems to work the same as with OMNY. The reader even looks the same as in MTA stations.
PATH has launched a pilot of TAPP, or Total Access PATH Payment, a new contactless fare payment system. With TAPP you can pay for your ride directly at the turnstile with a contactless credit/debit card or smart device.
The initial TAPP pilot is available at 33 Street, Harrison, Hoboken, Journal Square, Newark amd World Trade Center stations [sic]. As the pilot continues, the system will gradually expand to additional turnstiles and stations.
TAPP turnstiles do not accept SmartLink or MetroCard. Please continue to use non-TAPP turnstiles when paying with these fare media. TAPP does not accept OMNY.