Rawstudio is licensed under the GNU General Public License, version 2. This means you are free to download, use and modify the program under the conditions described in the license.
Source files for all releases can be found here.
Packages for Ubuntu can be found here.
Daily build packages for Ubuntu can be found here.
$ tar xfz rawstudio-x.y.tar.gz
$ cd rawstudio-x.y
$ ./configure
$ make
$ sudo make install
Anonymous checkout of active development tree is possible here.
$ git clone https://github.com/rawstudio/rawstudio.git
$ cd rawstudio
$ ./autogen.sh
$ make
$ sudo make install