Applications are one factor considered when choosing/planning an IT system. Datamation has a good list of FLOSS projects more or less equivalent to some popular applications that run on that other OS. Browsing the list could offer you better or cheaper choices for your applications.
I am planning a web-site memorial to honour my mother and was looking over the list to see what might be relevant. A general-purpose CMS (Content Management System) might be overkill and there are a ton of applications I have not used that might help me develop something better than a few flat pages:
- Alfresco looks a bit over-powered for what I want but I may try it out. It’s great for document management and collaboration.
- MySQL makes sense for a database because this blog already uses it but I would use PostgreSQL if the site were to be put on a different server, because I don’t trust Oracle much to be friendly to FLOSS.
- on the client side, I already am happy with my FLOSS tools: LibreOffice, Chrome browser, Dia, xfce4-screenshooter-plugin, vlc, imagemagick, Gimp, sox, Orage, xpdf and so on,
With such a long list of “equivalents” and the huge repositories of Free Software at Sourceforge, GitHub and Debian GNU/Linux, it’s quite a target-rich environment for planning a project.