Yes. For Bulb exposures longer than 30 seconds, the usual solution is a remote shutter release rather than holding the camera’s shutter button.

A wired remote with a locking button will let you start the exposure and keep the shutter open without physically holding the button, which also helps reduce camera shake. There are also interval/timer remotes that let you set very long exposure times automatically.

You do not specifically need a wireless remote; a simple wired release is commonly used for this. If you like DIY projects, people also build basic wired remotes with a switch for long Bulb exposures.

So the practical answer is: use a wired locking shutter release, or a timer remote if you want to set exact long durations.