You can buy a "Tubliss" setup , they are around $100 for each wheel , I use them on all my bikes ,, it is not like a Tubeless tire for a car or even some street bikes , usually the ones that have tubeless have mag wheels , not spoke wheels , you can make a spoke wheel work with the Tubliss system , but not very well just not using a tube , as the tires are not usually tubeless , they are required to have a tube , they will say "Tube Type Tire" right on them
This is the Tubliss setup I am referring to , they work really well and come in different rim sizes , so you should not have a issue , and I have not had a pinch flat since using them , and have them on the bike in the picture below as well as my other bike ... and is pretty much the only way you can eliminate the tube , even though they do have a tube of sorts , it is called a Bladder and what it does is seal the tire bead to the rim lip , then it has a built in rim lock that you inflate air into the tire itself to whatever PSI you need , the "Bladder" inflated to 100 PSI and that is what keeps the air in the tire and the bead sealed to the rim ...
https://www.crfsonly.com/catalog/produc ... ts_id/3239