I made a low price 2in1 circular saw jig using an inexpensive stainless steel pipe
"Circular saw slide jig" / "panel saw"
The round saw is fixed by a linear shaft, which is a design with excellent safety.
If fixed to a wall, it can be used as a panel saw.
Although inexpensive stainless steel pipes were used, they can be upgraded to high precision and high rigidity jigs by replacing them with linear shafts.