DOSBox-X officially creates an "OS-free" branch to comply with emerging age verification laws.
"The osfree branch can only boot a guest OS. main-osfree is for use in jurisdictions that enforce or wish to enforce OS level age verification, and therefore, may consider the MS-DOS emulation an OS that is subject to those laws."
https://github.com/joncampbell123/dosbox-x/releases/tag/dosbox-x-v2026.03.29