Well supposedly they do intend to bring Galaxy to Linux. Here is one person that seems to have the necessary skills to make that happen. So why not hire or contract him and/or others(like Ryan "Icculus" Gordon)?

The technical part is not the issue, we've seen many times before that there's just no interest on GOG's side.

I am afraid you are correct, hence the "supposedly". But they have claimed that Linux support is somewhere on their todo list... if that truly is the case but they don't have the resources to do it internally, they should outsource it.

People have already forgotten how long it took for galaxy for windows to come out?
Ps. the topic for the beta for the galaxy client is from around 2015 and thats only the beta meaning it wasnt the full implemention.
There was a number of years before that it was alpha and only a few select ones got to try the client at first as well.
Gog is 10 years old btw so it shoud give an indication on how long stuff takes to implement here.
My estimate is 5 years wich makes a linux client a maybe possibilty by 2020 + give or take a year or two. This is just an estimate and guesswork though since there has been no indication of a definitive no to a linux client.

To compare il include some data from steam
1996 Valve Founded
2002 Announcement and beta release of the steam client
2003 Official release
2004
2005 First publisher partnership
2006
2007 Steam Community launched
2008 Steamworks released
Matchmaking released
2009 Steam Cloud
2010 Mac OS X client released
Translation Server opened
2011 PlayStation 3 Steamworks integration
Steam Workshop launched
2012 Steam mobile apps released
Steam for Schools launched
Steam Greenlight launched
Big Picture Mode launched
Productivity software added to catalog
2013 Linux client released
Family Sharing launched
2014 In-Home Streaming launched
Steam Music launched
Discovery 1.0 update
2015 Broadcast streaming launched
Steam Hardware/SteamOS
Steam Machines released
Movies/TV purchases/renting added to library
2016 SteamVR launched
Discovery 2.0 update launched
2017 Steam Direct launched

Developing it in cross platform fashion solves all this at the same time. The problem is not technical, but simply lack of interest to invest effort into supporting it.

Surely given that there is a Mac version, they are already developing it in a cross platform fashion? At least to an extent? Also GOG have required Linux skills in a few of their job ads, including Galaxy related ones, for a while now...

all the libraries/frameworks that they use are cross platform (last time I checked). But while that avoids a lot of extra work when porting to a new platform, it won't solve everything and magically make it work everywhere ;)
Galaxy probably needs a few bits of platform-specific stuff.

besides, developing with cross platfom support is all very nice, but in the end you will have to build and test (aka actually use) it on those platforms to actually make a good product. And that will always require extra time and developers with experience on that platform (or enough time for them to gain enough experience).

Don't forget about us running variants of said systems that while at the core are the exact same, might have newer, or different libs. Citra for example won't run on many systems due to their (Travis based) build system running off Ubuntu and "requiring" a lib which straight up doesn't exist in this userland.

Yeah, obviously there is still work to be done, otherwise they would already have released a Linux version. But still the fact that there is a Mac version is bound to make things easier than if that wasn't the case.

Yesterday I got in touch with the Heroes of Hammerwatch dev, if they were to release a Linux version on GOG without Multiplayer support (since it relies on Galaxy), do you think Comet would be able to make it work and if yes, does he need to have any pre-requisites?

In one of the emails, he mentioned that most likely the Linux version on Steam already comes with libGalaxy64.so, I'm not sure if that's enough.

Linux and Mac 1v1

who wins?

Always bet on Windows. Sad but true. =/

The best thing to do would be to build the game as if a Galaxy client is present but fail gracefully if it isn't. This allows for a single binary to work in both cases and offers maximum convenience for both users and developers. Also please no stubbing out unsupported interfaces, if something breaks it's my responsibility to make it work.

I'd be very happy to work directly with the developer, I just haven't contacted them because don't think the project is good enough to warrant official support. If others want to ask for it that's fine though.

Could you please keep this crap out of here?

Working very nicely! Not sure if it's the latest update of Stardew Valley or if cometd was exactly what it needed, where previously it would freeze on end of day in game, now it's working perfectly!

Q: Will you be keeping the daemon in mind as core where the QT UI will be optional, I love when things have minimal dependencies to keep track of. Again, thanks a bunch for figuring this stuff out!