In the northeast of Poland they have a lot of interconnected lakes and a great sailing tradition. Their road/rail infrastructure never considered sailboats except in rare cases like a section of road that turns 90 degrees by hand. I digress.
The majority of the boats have a tabernacle mast raising/lowering system. You can see it in the picture. It is the rail running just above the top sides, almost parallel to the water and follows the shape of the bow. It is hinged at the two aft points and a block and tackle system connects at the fore end, the apex of the bar.
The process to lower is disconnect the gooseneck and lay the boom to one side.
Pull the lock pin which also has a safety ring at the base of the jib halyard (probably not the right terminology). There is a line that runs from the base of the jib halyard back to the cockpit. It runs through the blocks between the base and the attachment. It is the red with right tracer on the port side in this picture.
This line controls the mast falling backwards. Ease it and a little push and down she goes.
To raise, pull or winch the mast back up, pin it, reconnect the boom, and off you go.
Here is another picture showing the mast laid down. The blue line with white tracer is the line that controls the mast.
A couple of the groups I sailed with got good enough to take this down in under five minutes. Could be done by one person, but it was always nice to get everyone involved even if some only helped wrangle all the lines and stays.