If I were doing crossover boards where I expected to make changes, I would use Waygo connectors.
https://www.wago.com/au/electrical-interconnections/discover-installation-terminal-blocks-and-connectors/221I use Goop to attach them securely to a board and simply insert the wires. I find them really useful for creating a ground bus and other arrangements where multiple wires come together and I expect to make changes. To make a change, simply flip the appropriate lever and remove the wire to the component and replace with the wire to the different component.
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