$ ~/local.new/bin/dosemu -I "cpu_vm_dpmi native" -K "$PWD" -E "ldebugx.com /c='?build;r dco or= 800;g;g;q' dpmimini.com" -dumb -td -kt -I "serial { com 2 device /tmp/vptty-dos }"

Welcome to dosemu2!
    Build 2.0pre9-dev-20220901-390-ga767186ce
&?build
lDebugX (2022-11-27)
Source Control Revision ID: hg 2f3d969d4881 (3503 ancestors)
Uses lmacros:  Revision ID hg 36a652946a11 (151 ancestors)
Uses scanptab: Revision ID hg 0e53081c1531 (10 ancestors)
Uses inicomp:  Revision ID hg 7b9eafdaf126 (537 ancestors)
Uses ldosboot: Revision ID hg bdc2588d7abe+ (648 ancestors)
&r dco or= 800
&g
DPMI entry hooked, new entry=0377:9486
Protected mode breakpoint at 015Dh.
32-bit code segment breakpoint at 016Fh.

Unexpected breakpoint interrupt
AX=0200 BX=00E6 CX=0105 DX=000A SP=FFFC BP=0000 SI=0253 DI=9486
DS=22EC ES=32ED SS=22EC CS=22EC IP=013E NV UP EI PL ZR NA PE NC
22EC:013E 89E5              mov     bp, sp
&g
Succeeded in unhooking interrupt 2Fh.
Welcome in 32-bit protected mode.

Program terminated normally (0000)
&q
Security warning: native DPMI mode is insecure, adjust $_cpu_vm_dpmi
[...]