I've been using this CPCInAJar emulator for a while now, because it's neat and handy and fast when I need to make screenshots.
I only have a little problem: Double-clicking in the window does give me double-size pixels, but the window-size remains the same.
This is on Ubuntu Linux.
It would also be nice if it could be coded to remember the path to the last opened DSK file so that I don't have to select folder after folder everytime I want to load a new disk.