[NTG-context] Build fails on fresh installs

VirtualBox 6.1.18 + ConTeXt Perform OS installations using defaults and the following values: - Set regular username to: username - Set guest computer name to: computer Use ConTeXt binaries appropriate for OS: - FreeBSD - http://lmtx.pragma-ade.nl/install-lmtx/context-freebsd-amd64.zip - Xubuntu/Debian - http://lmtx.pragma-ade.nl/install-lmtx/context-linux-64.zip ConTeXt version 2021.03.20 01:07. See questions at the end. Instructions After an OS is installed, complete the following steps: 1. Start VirtualBox 2. Install ISO 3. Log in as root 4. Open a terminal 5. Install wget 6. Install gcc 7. Install Guest Additions (to enable copy/paste between guest/host) 8. Log in as username 9. Open a terminal 10. mkdir context 11. cd context 12. Download OS-specific ConTeXt binary 13. unzip *zip 14. sh install.sh 15. Export PATH environment variable (OS-specific; see below) 16. context --version 17. mkdir -p ../tex 18. cd ../tex 19. Create "hello.tex": \starttext Hello \stoptext 20. context hello.tex 21. Stop VirtualBox Expected A hello.pdf file is created. Actual Build fails. resolvers > lua > loading file '/home/username/context/tex/texmf-context/tex/context/base/mkxl/spac-hor.lmt' succeeded tex error > tex error on line 25 in file spac-hor.mkxl: Undefined control sequence \bitwiseflip \normalizelinemode \flattendiscretionariescode The control sequence at the end of the top line of your error message was never \def'ed. You can just continue as I'll forget about whatever was undefined. ... mtx-context | error, no format found with name: cont-en, aborting Debian 10.8.0 - https://cdimage.debian.org/debian-cd/current-live/amd64/iso-hybrid/debian-li... Additional instructions: - usermod -aG sudo username - apt install wget gcc - export PATH=/home/username/context/tex/texmf-linux-64/bin:$PATH Xubuntu 20.04.2 - http://mirror.us.leaseweb.net/ubuntu-cdimage/xubuntu/releases/20.04/release/... Additional instructions: - usermod -aG sudo username - apt install wget gcc - export PATH=/home/username/context/tex/texmf-linux-64/bin:$PATH FreeBSD 12.2 - https://download.freebsd.org/ftp/releases/amd64/amd64/ISO-IMAGES/12.2/FreeBS... Additional instructions: - pkg install security/sudo - pkg install wget gcc xor slim xfce - pw group mod wheel -m username - visudo (add username to sudoers) - export PATH=/home/username/context/tex/texmf-freebsd-amd64/bin:$PATH Are there additional requirements that must be installed? If so, what are they and is there a way for ConTeXt itself to list them for the user? Thank you!