This is a Unix virtual machine with an interface in 2 forms: either have the Teminal Windows on you Mac Desktop or a Desktop with 4 "Screens" as provided by Exceed or VCXsrv which are X clients running under Windows to access a Unix Server.
Unlike Power MacTen, it is turned towards software development and offers several compilers (Ada, C++, Java, Objective-C and Fortran). Many (UX) command line tools are provided.
CodeBuilder also used its own file system removing the 32 alphachars limit from Mac OS.
Descriptions are still available on Tenon's home page:
Products CodeBuilder
Description
Running this SW under MacOS 8.6 I experienced problems (scrolling in Xtems and the emacs icon not starting emacs). As I wanted to experience with Ada I came to the gratprep preprocessor which causes the Mac to hang.
On the look for another gant version (and as an upgrade to 3.09 is mentionned in the FAQs of CodeBuilder/MachTen) I found a newer version on the web archive:
https://archive.org/details/GNATOldVersions
It is an about 490 MB download in which you find the file
gnat:adaic:gnat:3.12p:powermac:gnat-3.12p-mac-bin.tar.gz
It didnt't solve the gnatprep problem but may be interesting.
CodeBuilder is a powerful and unique Macintosh software development tool for porting existing applications or developing new, advanced applications on Power Macs and Power Mac clones. CodeBuilder is an economical choice for users who want the power of a complete UNIX developmental platform on their Macintosh, but do not need the networking functionality provided by MachTen.
CodeBuilder is a Power Macintosh application that includes a complete suite of C, C++, Objective-C, Java, Ada, and Fortran development tools. CodeBuilder can be used in combination with standard Macintosh editors and compilers to develop Macintosh applications, X applications, and UNIX applications.
CodeBuilder gives developers the ability to create an application with a single source base not only for Power Macs under a native Apple operating system, but also for Silicon Graphics, SUN, NeXT, or HP environments. CodeBuilder gives Apple developers the freedom to take advantage of time-tested UNIX development tools and to explore Objective-C and Ada, without giving up the features of their favorite Macintosh editors and compilers. Because CodeBuilder uses standard Macintosh binary formats, you can use Macintosh debuggers and even combine Macintosh compiler output with CodeBuilder's UNIX compiler output. CodeBuilder is a new standard in PowerPC software development.
Tenon Intersystems. (2000). MachTen CodeBuilder. www.tenon.com/products/codebuilder/
(119.95 MiB / 125.77 MB)
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2023-01-07 /

2023-10-15 /

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Architecture 

IBM PowerPC
System Requirements 
From Mac OS 7.1
up to Mac OS 9.0
Compatibility notes 
Works with System 7 to 9.0.4 (As Power MacTen)
Emulating this? It could probably run under:
SheepShaver