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When talking about a possible libre version of TDM (https://forums.thedarkmod.com/index.php?/topic/22346-libre-version-of-tdm/) it seems we believe all media/gamedata included in TDM is licensed CC-BY-NC-SA. I am not familiar with how the process of adding new media/gamedata works today; I have seen files uploaded to the bugtracker which developers then commit to SVN, but I don't know if there are other ways. It may be a good idea to implement a process that when new components (media/gamedata included in TDM) are added, the contributor is asked to be explicit about the license (a choice which may defaults to their previous preference, for usability). It won't fix the past, but it may help in the future. This will make it easy for contributors to add future data under a more permissive license if they choose. Libre media can be added and its license can be tracked, rather than assumed to be CC-BY-NC-SA. I suggest looking at how Wikimedia Commons has implemented this: the contributor state the source and license at the time the data is uploaded. This can be done either by providing urls or by saying "It's my work and I choose this licsense". The first step could be to add a way to keep track of each filepath in SVN, author, license, sources. Start by setting the value for each file's license to "(default/legacy CC-BY-NC-SA)". Possible implementations for a user interface for new additions are: * Use our own wiki, which runs Mediawiki (same as Wikimedia Commons). I see several benefits of this, but we also need a way to accept uploads of batches, not just single files. * Look at how other open source projects have solved this. There may be more appropriate solutions available. ... but I'll leave the implementation open. Suggestions are very welcome! If the author of each file already in SVN can be tracked, then it may be possible that the author is willing to give a blanket permission for all their past files in one statement, and all their files in SVN can be updated in one commit. A productive contributor willing to release some of their work under a more permissive license could make a big change. If Dark Radiant would support letting mappers search media/gamedata by license (does it already?), it would make it easier for mappers to create a completely libre mission, which would help facilitate a TDM-libre release. If I understand things correctly. This post does not address all details and it may contain misunderstandings or assumptions, but it's a start. Also relevant: * Is there a compiled and maintained list of recommended or deprecated resources for mappers to use? * https://forums.thedarkmod.com/index.php?/topic/20311-external-art-assets-licensing/

This post differentiates between "gratis" ("at no monetary cost") and "libre" ("with little or no restriction") per https://en.wikipedia.org/wiki/Gratis_versus_libre * A libre version of TDM could: ** Qualify TDM for an article on the LibreGameWiki *** TDM is currently listed as rejected https://libregamewiki.org/Libregamewiki:Rejected_games_list because "Media is non-commercial (under CC-BY-NC-SA 3.0). The engine is free though (modified Doom 3) (2013-10-19)" ** Qualify for software repositories like Debian *** TDM is currently listed as unsuitable https://wiki.debian.org/Games/Unsuitable#The_Dark_Mod because 1) "The gamedata is very large (2.3 GB)", and 2) "The license of the gamedata (otherwise it must go into non-free with the engine into contrib)" and links to https://svn.thedarkmod.com/publicsvn/darkmod_src/trunk/LICENSE.txt Questions: 1) tdm_installer.linux64 is 4.2 MB (unzipped), which is far from the 2.3 GB which is said to be too large. Yes, the user can use it to download data that is non-libre, but so can any web browser too. If the installer itself is completely libre, does anyone know the reason why it cannot be accepted into the Debian repository? 2) If adding the installer to the repository is not a viable solution, would it be possible to package the engine with a small and beginner friendly mission built only from libre media/gamedata into a "TDM-libre" release, and add user friendly functionality to download the 2.3 GB media/gamedata using "TDM-libre" (similar to mission downloading)? 3) Would such a "TDM-libre" release be acceptable for the Debian repository? 4) Would such a "TDM-libre" release be acceptable for LibreGameWiki? 5) Would the work be worth it? * Pros: Exposure in channels covering libre software (e.g. the LibreGameWiki). Distribution in channels allowing only libre software (e.g. the Debian repository). * Cons: The work required for the modifictions and release of "TDM-libre". Possible maintenance of "TDM-libre". I'm thinking that the wider reach may attract more volunteers to work on TDM, which may eventually make up for this work and hopefully be net positive. 6) Are there any TDM missions that are libre already today? If not, would anyone be willing to work on one to fulfill this? I'll contribute in any way I can. 7) I found the following related topics on the forum: * https://forums.thedarkmod.com/index.php?/topic/16226-graphical-installers-for-tdm/ (installing only the updater) * https://forums.thedarkmod.com/index.php?/topic/16640-problems-i-had-with-tdm-installation-on-linux-w-solutions/ (problems with installation on Linux) * https://forums.thedarkmod.com/index.php?/topic/17743-building-tdm-on-debian-8-steamos-tdm-203/ (Building TDM on Debian 8 / SteamOS) * https://forums.thedarkmod.com/index.php?/topic/18592-debian-packaging/ (Dark Radiant) ... but if there are other related previous discussions, I'd appreciate any links to them. Any thoughts or comments?