Add introductory note crediting key open source components

docs/general/introduction.rst

@@ -15,8 +15,6 @@ Broadly speaking, this means that even if files in one of your virtual machines
 are exposed to malware, files in others still have some protection, which is
 not true of other operating systems.
 
-.. _`Qubes OS`: https://www.qubes-os.org
-
 What is SecureDrop Workstation?
 -------------------------------
 
@@ -33,4 +31,45 @@ and viewing. SecureDrop Workstation combines all of those steps
 into one workflow on one machine: a Qubes computer that
 combines the *Journalist Workstation* and the *Secure Viewing Station*.
 
-For more information on SecureDrop Workstation, see our :doc:`faq <../journalist/faq>`.
+Who is behind SecureDrop Workstation?
+-------------------------------------
+SecureDrop and SecureDrop Workstation are open source projects of
+`Freedom of the Press Foundation (FPF) <https://freedom.press/>`_, a
+US-based nonprofit organization. You can support our work
+by `contributing to SecureDrop <https://developers.securedrop.org/en/latest/contributing.html>`_
+and by making `a donation <https://freedom.press/donate>`_.
+
+Our work would not be possible without the larger open source community.
+
+We're deeply grateful to the SecureDrop volunteer community for translating
+our software into many languages. Their work is enabled by `Weblate <https://weblate.org/>`_,
+an open source platform for continuous localization. You can `make a donation <https://weblate.org/en/donate/>`_
+to support Weblate development.
+
+Translation of SecureDrop is supported by `Localization Lab <https://www.localizationlab.org/>`_. You can
+`donate <https://www.localizationlab.org/donate>`_ to support their important
+work to help bring open source software into many languages.
+
+The backbone of SecureDrop Workstation is `Qubes OS`_.
+FPF has directly sponsored Qubes OS development, and we encourage you to
+`donate to Qubes OS <https://www.qubes-os.org/donate/>`_ as well.
+
+We use the `Python <https://www.python.org/>`_ programming language and many tools in its
+ecosystem, which you can support by `donating to the Python Software Foundation <https://www.python.org/psf/donations/>`_.
+
+SecureDrop Workstation VMs are powered by `Debian <https://www.debian.org/>`_,
+`Fedora <https://fedoraproject.org/>`_, and `Whonix <https://www.whonix.org/>`_, all
+of which rely on volunteer contributions and financial support. The
+`GNOME <https://www.gnome.org/>`_ project acts as an umbrella for many of the individual
+software components we rely on.
+
+Finally, SecureDrop Workstation relies on many other open source projects such as
+`grsecurity <https://www.grsecurity.net>`_,  `GnuPG <https://gnupg.org/>`_,
+`Sequoia <https://sequoia-pgp.org/>`_, `LibreOffice <https://www.libreoffice.org/>`_,
+`Audacious <https://audacious-media-player.org/>`_, and others. These projects,
+in turn, are built on open source foundations. Please consider
+directing time and financial support wherever it can make a positive difference.
+
+For more information on SecureDrop Workstation, see our :doc:`FAQ <../journalist/faq>`.
+
+.. _`Qubes OS`: https://www.qubes-os.org