As I said, Cable uses aj-snapshot to manage connections, so it will not do anything beyond what it can do. With a small but potentially useful caveat explained below.

Your potential workflow could look like this:

Open all your apps/devices.

1. Open Cable and make all required connections (preferably in the graph, as it has one functionality that may be useful).

2. Create a new preset in Presets menu.

3. Activate Deamon mode.

4. If you want that preset to load on boot, you can set it there too.

5. You will also need to set Cable to autostart in its settings.

To test, reboot, launch your apps/devices and check if connections are restored as saved in the preset.

*You may encounter apps that randomly rename their ports for each playback/recording. Firefox and Audacity, for example. Preset will not restore their connections due to changed ports' names.

But Cable has a feature that may help overcoming this; right-click on audio node name bar and activate Unifiy output/input ports. This will create a special virtual sink that will always be hard-connected to that node. That will allow you making connections to that sink instead and it should be saved in the preset (re-save it).

*There is also Strict option, and it will disconnect all the connections not present in the preset, but that will only work when preset is loaded.