trying to run remora

Hello there.
actually i am trying to run Remora on my Rpi4, i am using debian bookworm, but when i try to run remora.xyz, appears this message. someone can help me resolving this?



Error report created by /usr/lib/tcltk/linuxcnc/show_errors.tcl:

Print file information:
RUN_IN_PLACE=no
LINUXCNC_DIR=
LINUXCNC_BIN_DIR=/usr/bin
LINUXCNC_TCL_DIR=/usr/lib/tcltk/linuxcnc
LINUXCNC_SCRIPT_DIR=
LINUXCNC_RTLIB_DIR=/usr/lib/linuxcnc/modules
LINUXCNC_CONFIG_DIR=
LINUXCNC_LANG_DIR=/usr/lib/tcltk/linuxcnc/msgs
INIVAR=inivar
HALCMD=halcmd
LINUXCNC_EMCSH=/usr/bin/wish8.6
LINUXCNC - 2.9.0~pre1+git20230208.f1270d6ed7
Machine configuration directory is '/home/cnc/linuxcnc/configs/remora-xyz'
Machine configuration file is 'remora-xyz.ini'
INIFILE=/home/cnc/linuxcnc/configs/remora-xyz/remora-xyz.ini
VERSION=1.1
PARAMETER_FILE=linuxcnc.var
TPMOD=
HOMEMOD=
TASK=milltask
HALUI=
DISPLAY=axis
COORDINATES=X Y Z
KINEMATICS=trivkins coordinates=XYZ
Starting LinuxCNC...
Starting LinuxCNC server program: linuxcncsvr
Loading Real Time OS, RTAPI, and HAL_LIB modules
Starting LinuxCNC IO program: io
linuxcnc TPMOD=tpmod HOMEMOD=homemod EMCMOT=motmod
Found file(REL): ./remora-xyz.hal
Shutting down and cleaning up LinuxCNC...
Removing HAL_LIB, RTAPI, and Real Time OS modules
Removing NML shared memory segments

Debug file information:
Note: Using POSIX realtime
bcm2835_init: gpio mmap failed: Operation not permitted
rt_bcm2835_init failed. Are you running with root privlages??
remora: rtapi_app_main: Operation not permitted (-1)
./remora-xyz.hal:7: waitpid failed /usr/bin/rtapi_app remora
./remora-xyz.hal:7: /usr/bin/rtapi_app exited without becoming ready
./remora-xyz.hal:7: insmod for remora failed, returned -1
70177
Stopping realtime threads
Unloading hal components
remora: not loaded
<commandline>:0: exit value: 255
<commandline>:0: rmmod failed, returned -1
<commandline>:0: unloadrt failed
Note: Using POSIX realtime

---

Info report created by linuxcnc_info:
The file:    /tmp/linuxcnc_info.txt
can be posted to a forum or a web site like:
     pastebin.com
in order to provide information about the linuxcnc
system and configuration.

                Date: Tue Jul 18 18:16:16 UTC 2023
            UTC Date: Tue Jul 18 18:16:16 UTC 2023
 

This has been fixed in the last day or so.
However, I am not sure that you can upgrade to it without compiling from source as I don't think there is a V2.9 buildbot for the Pi 
 

okay... but, how i compile from source? can you help me with?

linuxcnc.org/docs/html/code/building-linuxcnc.html