Twilight Development System (TDS) provides an integrated
environment for writing and compiling source files like Turbo
Pascal or Borland C++. Its main feature is to simplify and speed
up the development of programs composed of different source files
(modules). With TDS it's possible to compile and link these
modules into an executable file with a single command and if the
compiler finds some errors, they will be reported directly by the
editor. TDS doesn't provide its own compiler, but can use any
compiler or assembler callable from CLI. It has internal message
converters for DICE C, SAS C (former LATTICE C), Aztec C, DevPac
Assembler and it's possible to write custom converters for any
other compiler.

To install TDS copy all files in a directory and execute
"assign TDS: directory" on the CLI. If you use the program from CLI
add "path TDS: add" to the shell-startup. With Kickstart 1.3
TDS uses the arp.library which must be copied into LIBS:.