[ Thanks to js61351 for this link.
]
“What are the most common problems encountered in
migrations from proprietary to open source security?“Field: The most common problem is the actual
installation of the open source software package. Proprietary
packages, however poor their performance and functionality might
be, have developers who usually spend a large amount of time and
effort creating the installer (using a closed-source installation
package). The costs of the most common installation systems are
beyond the funds available to the open-source community, and so
installation is often slightly more awkward, relying more heavily
on the knowledge and skills of the engineers installing the
software…”