As someone with a similar setup to the OP, I should mention: OpenMPTCPRouter's networking is completely amateur compared to Speedify. It's a grab bag of half-

As someone with a similar setup to the OP, I should mention: OpenMPTCPRouter's networking is completely amateur compared to Speedify. It's a grab bag of half-baked multipath VPN experiments (glorytun over UDP, an outdated MPTCP-based fork of glorytun, and MLVPN), none of which approach the completeness of Spotify's implemention. They generally don't handle changing interface bandwidth, packet reordering, packet aggregation, header compression, mode switching between redundant and aggregation, or any other hard problems here. Hopefully this will save someone the pain of setting these up just to be disappointed.