| What | Packer |
| Where | https://github.com/tclssg/packer |
| Description | A Starpack tool (see below). |
| Platforms | Known to run on Linux. Produces Starpacks for Linux (i386 and AMD64), OS X and Windows (32-bit) by default. |
| Prerequisites | Tcl 8.5 or newer. |
| Updated | 02/2015 |
| License | MIT |
Packer is a tool for building cross-platform Starpacks with Tcllib included. It takes as input the content of a Git repository, e.g., on GitHub. The only assumption made about the source repository is that it includes a lib/ directory into which Tcllib will be copied. Packer builds Tclssg by default (for which it was developed). It can be customized by overriding select default options; see the file build.tcl in the repository for an example of how it can be done.