ace software package provides HTML template engine for Go (command-line tool), you can install in your Debian 9 (Stretch) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install ace
ace is installed in your system.
Make ensure the ace package were installed using the commands given below,
$ sudo dpkg-query -l | grep ace *
You will get with ace package name, version, architecture and description in a table
| Distro | Debian 9 stretch |
| Section | Text Processing |
| Package | ace |
| Version | 0.0.4+git20160102.51.71afeb7-1 |
| Description | HTML template engine for Go (command-line tool) |
| Sub Section | Text |