The build-image.sh script now creates an appimage. It doesn't run
outside the build vm, though:

boud@linux-s09k:~> ./Krita-x86_64.AppImage
OpenGL Info
  Vendor:  NVIDIA Corporation
  Renderer:  "Quadro K620/PCIe/SSE2"
  Version:  "4.5.0 NVIDIA 384.111"
  Shading language:  4.50 NVIDIA
  Requested format:  QSurfaceFormat(version 3.0, options QFlags<QSurfaceFormat::FormatOption>(DeprecatedFunctions), depthBufferSize 24, redBufferSize -1, greenBufferSize -1, blueBufferSize -1, alphaBufferSize -1, stencilBufferSize 8, samples -1, swapBehavior QSurfaceFormat::SwapBehavior(DoubleBuffer), swapInterval 0, colorSpace QSurfaceFormat::ColorSpace(DefaultColorSpace), profile  QSurfaceFormat::OpenGLContextProfile(CompatibilityProfile))
  Current format:    QSurfaceFormat(version 4.5, options QFlags<QSurfaceFormat::FormatOption>(DeprecatedFunctions), depthBufferSize 24, redBufferSize 8, greenBufferSize 8, blueBufferSize 8, alphaBufferSize 0, stencilBufferSize 8, samples -1, swapBehavior QSurfaceFormat::SwapBehavior(DoubleBuffer), swapInterval 0, colorSpace QSurfaceFormat::ColorSpace(DefaultColorSpace), profile  QSurfaceFormat::OpenGLContextProfile(CompatibilityProfile))
     Version: 4.5
     Supports deprecated functions true
     is OpenGL ES: false
krita has opengl true
Setting XDG_DATA_DIRS "/tmp/.mount_Krita-LMj8rh/usr/bin/../share:/usr/local/share:/usr/share"
Available translations QSet("en_US")
Available domain translations QSet("en_US")
Override language: ""
Setting Krita's language to: QLocale(English, Latin, UnitedStates)
Loading plugin "/tmp/.mount_Krita-LMj8rh/usr/lib/x86_64-linux-gnu/kritaplugins/krita_shape_text.so" failed,  "Cannot load library /tmp/.mount_Krita-LMj8rh/usr/lib/x86_64-linux-gnu/kritaplugins/krita_shape_text.so: (libkritatextlayout.so.16: cannot open shared object file: No such file or directory)"
Loading plugin "/tmp/.mount_Krita-LMj8rh/usr/lib/x86_64-linux-gnu/kritaplugins/kritacolorsmudgepaintop.so" failed,  "Cannot load library /tmp/.mount_Krita-LMj8rh/usr/lib/x86_64-linux-gnu/kritaplugins/kritacolorsmudgepaintop.so: (libkritalibpaintop.so.16: cannot open shared object file: No such file or directory)"
Loading plugin "/tmp/.mount_Krita-LMj8rh/usr/lib/x86_64-linux-gnu/kritaplugins/kritacurvepaintop.so" failed,  "Cannot load library /tmp/.mount_Krita-LMj8rh/usr/lib/x86_64-linux-gnu/kritaplugins/kritacurvepaintop.so: (libkritalibpaintop.so.16: cannot open shared object file: No such file or directory)"
Loading plugin "/tmp/.mount_Krita-LMj8rh/usr/lib/x86_64-linux-gnu/kritaplugins/kritadefaultpaintops.so" failed,  "Cannot load library /tmp/.mount_Krita-LMj8rh/usr/lib/x86_64-linux-gnu/kritaplugins/kritadefaultpaintops.so: (libkritalibpaintop.so.16: cannot open shared object file: No such file or directory)"
Loading plugin "/tmp/.mount_Krita-LMj8rh/usr/lib/x86_64-linux-gnu/kritaplugins/kritadeformpaintop.so" failed,  "Cannot load library /tmp/.mount_Krita-LMj8rh/usr/lib/x86_64-linux-gnu/kritaplugins/kritadeformpaintop.so: (libkritalibpaintop.so.16: cannot open shared object file: No such file or directory)"
Loading plugin "/tmp/.mount_Krita-LMj8rh/usr/lib/x86_64-linux-gnu/kritaplugins/kritadynapaintop.so" failed,  "Cannot load library /tmp/.mount_Krita-LMj8rh/usr/lib/x86_64-linux-gnu/kritaplugins/kritadynapaintop.so: (libkritalibpaintop.so.16: cannot open shared object file: No such file or directory)"
Loading plugin "/tmp/.mount_Krita-LMj8rh/usr/lib/x86_64-linux-gnu/kritaplugins/kritaexperimentpaintop.so" failed,  "Cannot load library /tmp/.mount_Krita-LMj8rh/usr/lib/x86_64-linux-gnu/kritaplugins/kritaexperimentpaintop.so: (libkritalibpaintop.so.16: cannot open shared object file: No such file or directory)"
Loading plugin "/tmp/.mount_Krita-LMj8rh/usr/lib/x86_64-linux-gnu/kritaplugins/kritafilterop.so" failed,  "Cannot load library /tmp/.mount_Krita-LMj8rh/usr/lib/x86_64-linux-gnu/kritaplugins/kritafilterop.so: (libkritalibpaintop.so.16: cannot open shared object file: No such file or directory)"
Loading plugin "/tmp/.mount_Krita-LMj8rh/usr/lib/x86_64-linux-gnu/kritaplugins/kritagridpaintop.so" failed,  "Cannot load library /tmp/.mount_Krita-LMj8rh/usr/lib/x86_64-linux-gnu/kritaplugins/kritagridpaintop.so: (libkritalibpaintop.so.16: cannot open shared object file: No such file or directory)"
Loading plugin "/tmp/.mount_Krita-LMj8rh/usr/lib/x86_64-linux-gnu/kritaplugins/kritahairypaintop.so" failed,  "Cannot load library /tmp/.mount_Krita-LMj8rh/usr/lib/x86_64-linux-gnu/kritaplugins/kritahairypaintop.so: (libkritalibpaintop.so.16: cannot open shared object file: No such file or directory)"
Loading plugin "/tmp/.mount_Krita-LMj8rh/usr/lib/x86_64-linux-gnu/kritaplugins/kritahatchingpaintop.so" failed,  "Cannot load library /tmp/.mount_Krita-LMj8rh/usr/lib/x86_64-linux-gnu/kritaplugins/kritahatchingpaintop.so: (libkritalibpaintop.so.16: cannot open shared object file: No such file or directory)"
Loading plugin "/tmp/.mount_Krita-LMj8rh/usr/lib/x86_64-linux-gnu/kritaplugins/kritaparticlepaintop.so" failed,  "Cannot load library /tmp/.mount_Krita-LMj8rh/usr/lib/x86_64-linux-gnu/kritaplugins/kritaparticlepaintop.so: (libkritalibpaintop.so.16: cannot open shared object file: No such file or directory)"
Loading plugin "/tmp/.mount_Krita-LMj8rh/usr/lib/x86_64-linux-gnu/kritaplugins/kritaroundmarkerpaintop.so" failed,  "Cannot load library /tmp/.mount_Krita-LMj8rh/usr/lib/x86_64-linux-gnu/kritaplugins/kritaroundmarkerpaintop.so: (libkritalibpaintop.so.16: cannot open shared object file: No such file or directory)"
Loading plugin "/tmp/.mount_Krita-LMj8rh/usr/lib/x86_64-linux-gnu/kritaplugins/kritasketchpaintop.so" failed,  "Cannot load library /tmp/.mount_Krita-LMj8rh/usr/lib/x86_64-linux-gnu/kritaplugins/kritasketchpaintop.so: (libkritalibpaintop.so.16: cannot open shared object file: No such file or directory)"
Loading plugin "/tmp/.mount_Krita-LMj8rh/usr/lib/x86_64-linux-gnu/kritaplugins/kritaspraypaintop.so" failed,  "Cannot load library /tmp/.mount_Krita-LMj8rh/usr/lib/x86_64-linux-gnu/kritaplugins/kritaspraypaintop.so: (libkritalibpaintop.so.16: cannot open shared object file: No such file or directory)"
Loading plugin "/tmp/.mount_Krita-LMj8rh/usr/lib/x86_64-linux-gnu/kritaplugins/kritatangentnormalpaintop.so" failed,  "Cannot load library /tmp/.mount_Krita-LMj8rh/usr/lib/x86_64-linux-gnu/kritaplugins/kritatangentnormalpaintop.so: (libkritalibpaintop.so.16: cannot open shared object file: No such file or directory)"
krita.lib.widgets: Loading resource  "/home/boud/.local/share/krita/paintoppresets/Fuzzy_Mix_Soft_Wash.kpp" failed
krita.lib.widgets: Loading resource  "/tmp/.mount_Krita-LMj8rh/usr/share/krita/paintoppresets/Airbrush_Soft.kpp" failed
krita.lib.widgets: Loading resource  "/tmp/.mount_Krita-LMj8rh/usr/share/krita/paintoppresets/Basic_Chisel_Smooth.kpp" failed
krita.lib.widgets: Loading resource  "/tmp/.mount_Krita-LMj8rh/usr/share/krita/paintoppresets/Basic_Flow.kpp" failed
krita.lib.widgets: Loading resource  "/tmp/.mount_Krita-LMj8rh/usr/share/krita/paintoppresets/Basic_tip_default.kpp" failed
krita.lib.widgets: Loading resource  "/tmp/.mount_Krita-LMj8rh/usr/share/krita/paintoppresets/Blender_Basic.kpp" failed
krita.lib.widgets: Loading resource  "/tmp/.mount_Krita-LMj8rh/usr/share/krita/paintoppresets/Blender_Blur.kpp" failed
krita.lib.widgets: Loading resource  "/tmp/.mount_Krita-LMj8rh/usr/share/krita/paintoppresets/Blender_Mover.kpp" failed
krita.lib.widgets: Loading resource  "/tmp/.mount_Krita-LMj8rh/usr/share/krita/paintoppresets/Blender_Mover_Tendrils.kpp" failed
krita.lib.widgets: Loading resource  "/tmp/.mount_Krita-LMj8rh/usr/share/krita/paintoppresets/Blender_Rake.kpp" failed
krita.lib.widgets: Loading resource  "/tmp/.mount_Krita-LMj8rh/usr/share/krita/paintoppresets/Blender_Textured.kpp" failed
krita.lib.widgets: Loading resource  "/tmp/.mount_Krita-LMj8rh/usr/share/krita/paintoppresets/Blender_Textured_Marble.kpp" failed
krita.lib.widgets: Loading resource  "/tmp/.mount_Krita-LMj8rh/usr/share/krita/paintoppresets/Blender_Water.kpp" failed
krita.lib.widgets: Loading resource  "/tmp/.mount_Krita-LMj8rh/usr/share/krita/paintoppresets/Blender_Water_Sponge.kpp" failed
krita.lib.widgets: Loading resource  "/tmp/.mount_Krita-LMj8rh/usr/share/krita/paintoppresets/Clone_Tool.kpp" failed
krita.lib.widgets: Loading resource  "/tmp/.mount_Krita-LMj8rh/usr/share/krita/paintoppresets/Clone_Tool_Textured.kpp" failed
krita.lib.widgets: Loading resource  "/tmp/.mount_Krita-LMj8rh/usr/share/krita/paintoppresets/Distort_Grow.kpp" failed
krita.lib.widgets: Loading resource  "/tmp/.mount_Krita-LMj8rh/usr/share/krita/paintoppresets/Distort_Move.kpp" failed
krita.lib.widgets: Loading resource  "/tmp/.mount_Krita-LMj8rh/usr/share/krita/paintoppresets/Distort_Shrink.kpp" failed
krita.lib.widgets: Loading resource  "/tmp/.mount_Krita-LMj8rh/usr/share/krita/paintoppresets/Dry_Bristles.kpp" failed
krita.lib.widgets: Loading resource  "/tmp/.mount_Krita-LMj8rh/usr/share/krita/paintoppresets/Dry_Bristles_Eroded.kpp" failed
krita.lib.widgets: Loading resource  "/tmp/.mount_Krita-LMj8rh/usr/share/krita/paintoppresets/Dry_Bristles_Smooth.kpp" failed
krita.lib.widgets: Loading resource  "/tmp/.mount_Krita-LMj8rh/usr/share/krita/paintoppresets/Dry_Marker.kpp" failed
krita.lib.widgets: Loading resource  "/tmp/.mount_Krita-LMj8rh/usr/share/krita/paintoppresets/Dry_Textured_Creases.kpp" failed
krita.lib.widgets: Loading resource  "/tmp/.mount_Krita-LMj8rh/usr/share/krita/paintoppresets/Dry_Textured_Rough.kpp" failed
krita.lib.widgets: Loading resource  "/tmp/.mount_Krita-LMj8rh/usr/share/krita/paintoppresets/Dry_Textured_Scribbles.kpp" failed
krita.lib.widgets: Loading resource  "/tmp/.mount_Krita-LMj8rh/usr/share/krita/paintoppresets/Dry_Textured_Soft.kpp" failed
krita.lib.widgets: Loading resource  "/tmp/.mount_Krita-LMj8rh/usr/share/krita/paintoppresets/Eraser_Airbrush.kpp" failed
krita.lib.widgets: Loading resource  "/tmp/.mount_Krita-LMj8rh/usr/share/krita/paintoppresets/Eraser_Circle.kpp" failed
krita.lib.widgets: Loading resource  "/tmp/.mount_Krita-LMj8rh/usr/share/krita/paintoppresets/Eraser_Hard.kpp" failed
krita.lib.widgets: Loading resource  "/tmp/.mount_Krita-LMj8rh/usr/share/krita/paintoppresets/Eraser_Screentone.kpp" failed
krita.lib.widgets: Loading resource  "/tmp/.mount_Krita-LMj8rh/usr/share/krita/paintoppresets/Eraser_Soft.kpp" failed
krita.lib.widgets: Loading resource  "/tmp/.mount_Krita-LMj8rh/usr/share/krita/paintoppresets/FX_Glow_Add.kpp" failed
krita.lib.widgets: Loading resource  "/tmp/.mount_Krita-LMj8rh/usr/share/krita/paintoppresets/FX_Image_Blur.kpp" failed
krita.lib.widgets: Loading resource  "/tmp/.mount_Krita-LMj8rh/usr/share/krita/paintoppresets/FX_Image_Sharpen.kpp" failed
krita.lib.widgets: Loading resource  "/tmp/.mount_Krita-LMj8rh/usr/share/krita/paintoppresets/FX_Pixelize.kpp" failed
krita.lib.widgets: Loading resource  "/tmp/.mount_Krita-LMj8rh/usr/share/krita/paintoppresets/FX_Smoke_Particles.kpp" failed
krita.lib.widgets: Loading resource  "/tmp/.mount_Krita-LMj8rh/usr/share/krita/paintoppresets/FX_Starfield.kpp" failed
krita.lib.widgets: Loading resource  "/tmp/.mount_Krita-LMj8rh/usr/share/krita/paintoppresets/FX_Value_Burn.kpp" failed
krita.lib.widgets: Loading resource  "/tmp/.mount_Krita-LMj8rh/usr/share/krita/paintoppresets/FX_Value_Dodge.kpp" failed
krita.lib.widgets: Loading resource  "/tmp/.mount_Krita-LMj8rh/usr/share/krita/paintoppresets/Fill_Large_Quick.kpp" failed
krita.lib.widgets: Loading resource  "/tmp/.mount_Krita-LMj8rh/usr/share/krita/paintoppresets/Fill_Screentones.kpp" failed
krita.lib.widgets: Loading resource  "/tmp/.mount_Krita-LMj8rh/usr/share/krita/paintoppresets/Fill_Shape.kpp" failed
krita.lib.widgets: Loading resource  "/tmp/.mount_Krita-LMj8rh/usr/share/krita/paintoppresets/Ink_Bristle.kpp" failed
krita.lib.widgets: Loading resource  "/tmp/.mount_Krita-LMj8rh/usr/share/krita/paintoppresets/Ink_Brush.kpp" failed
krita.lib.widgets: Loading resource  "/tmp/.mount_Krita-LMj8rh/usr/share/krita/paintoppresets/Ink_Brush_Rough.kpp" failed
krita.lib.widgets: Loading resource  "/tmp/.mount_Krita-LMj8rh/usr/share/krita/paintoppresets/Ink_Fineliner.kpp" failed
krita.lib.widgets: Loading resource  "/tmp/.mount_Krita-LMj8rh/usr/share/krita/paintoppresets/Ink_Leaky.kpp" failed
krita.lib.widgets: Loading resource  "/tmp/.mount_Krita-LMj8rh/usr/share/krita/paintoppresets/Ink_Precision.kpp" failed
krita.lib.widgets: Loading resource  "/tmp/.mount_Krita-LMj8rh/usr/share/krita/paintoppresets/Ink_Tough.kpp" failed
krita.lib.widgets: Loading resource  "/tmp/.mount_Krita-LMj8rh/usr/share/krita/paintoppresets/Normal_Map.kpp" failed
krita.lib.widgets: Loading resource  "/tmp/.mount_Krita-LMj8rh/usr/share/krita/paintoppresets/Pencil_2B.kpp" failed
krita.lib.widgets: Loading resource  "/tmp/.mount_Krita-LMj8rh/usr/share/krita/paintoppresets/Pencil_6B.kpp" failed
krita.lib.widgets: Loading resource  "/tmp/.mount_Krita-LMj8rh/usr/share/krita/paintoppresets/Pencil_Chrome.kpp" failed
krita.lib.widgets: Loading resource  "/tmp/.mount_Krita-LMj8rh/usr/share/krita/paintoppresets/Pencil_Hatch_Noisy.kpp" failed
krita.lib.widgets: Loading resource  "/tmp/.mount_Krita-LMj8rh/usr/share/krita/paintoppresets/Pencil_Pattern_Shading.kpp" failed
krita.lib.widgets: Loading resource  "/tmp/.mount_Krita-LMj8rh/usr/share/krita/paintoppresets/Pencil_Pattern_Tilt.kpp" failed
krita.lib.widgets: Loading resource  "/tmp/.mount_Krita-LMj8rh/usr/share/krita/paintoppresets/Pixel_Art.kpp" failed
krita.lib.widgets: Loading resource  "/tmp/.mount_Krita-LMj8rh/usr/share/krita/paintoppresets/Pixel_Art_Dithering.kpp" failed
krita.lib.widgets: Loading resource  "/tmp/.mount_Krita-LMj8rh/usr/share/krita/paintoppresets/Spray_Smoke.kpp" failed
krita.lib.widgets: Loading resource  "/tmp/.mount_Krita-LMj8rh/usr/share/krita/paintoppresets/Spray_Watercolor.kpp" failed
krita.lib.widgets: Loading resource  "/tmp/.mount_Krita-LMj8rh/usr/share/krita/paintoppresets/Stamp_Clouds.kpp" failed
krita.lib.widgets: Loading resource  "/tmp/.mount_Krita-LMj8rh/usr/share/krita/paintoppresets/Stamp_Freckles.kpp" failed
krita.lib.widgets: Loading resource  "/tmp/.mount_Krita-LMj8rh/usr/share/krita/paintoppresets/Stamp_Grass.kpp" failed
krita.lib.widgets: Loading resource  "/tmp/.mount_Krita-LMj8rh/usr/share/krita/paintoppresets/Stamp_Grass_Patch.kpp" failed
krita.lib.widgets: Loading resource  "/tmp/.mount_Krita-LMj8rh/usr/share/krita/paintoppresets/Stamp_Hearts.kpp" failed
krita.lib.widgets: Loading resource  "/tmp/.mount_Krita-LMj8rh/usr/share/krita/paintoppresets/Stamp_Leaves.kpp" failed
krita.lib.widgets: Loading resource  "/tmp/.mount_Krita-LMj8rh/usr/share/krita/paintoppresets/Stamp_Mountains_Distant.kpp" failed
krita.lib.widgets: Loading resource  "/tmp/.mount_Krita-LMj8rh/usr/share/krita/paintoppresets/Stamp_Scales.kpp" failed
krita.lib.widgets: Loading resource  "/tmp/.mount_Krita-LMj8rh/usr/share/krita/paintoppresets/Stamp_Shoujo_Bubbles.kpp" failed
krita.lib.widgets: Loading resource  "/tmp/.mount_Krita-LMj8rh/usr/share/krita/paintoppresets/Stamp_Spines.kpp" failed
krita.lib.widgets: Loading resource  "/tmp/.mount_Krita-LMj8rh/usr/share/krita/paintoppresets/Stamp_Water.kpp" failed
krita.lib.widgets: Loading resource  "/tmp/.mount_Krita-LMj8rh/usr/share/krita/paintoppresets/Stamp_Watercolor.kpp" failed
krita.lib.widgets: Loading resource  "/tmp/.mount_Krita-LMj8rh/usr/share/krita/paintoppresets/Waterpaint_Hard_Edges.kpp" failed
krita.lib.widgets: Loading resource  "/tmp/.mount_Krita-LMj8rh/usr/share/krita/paintoppresets/Waterpaint_Soft.kpp" failed
krita.lib.widgets: Loading resource  "/tmp/.mount_Krita-LMj8rh/usr/share/krita/paintoppresets/Waterpaint_Soft_Edges.kpp" failed
krita.lib.widgets: Loading resource  "/tmp/.mount_Krita-LMj8rh/usr/share/krita/paintoppresets/Wet_Bristles.kpp" failed
krita.lib.widgets: Loading resource  "/tmp/.mount_Krita-LMj8rh/usr/share/krita/paintoppresets/Wet_Bristles_Rough.kpp" failed
krita.lib.widgets: Loading resource  "/tmp/.mount_Krita-LMj8rh/usr/share/krita/paintoppresets/Wet_Bristles_Square.kpp" failed
krita.lib.widgets: Loading resource  "/tmp/.mount_Krita-LMj8rh/usr/share/krita/paintoppresets/Wet_Circle.kpp" failed
krita.lib.widgets: Loading resource  "/tmp/.mount_Krita-LMj8rh/usr/share/krita/paintoppresets/Wet_Smear.kpp" failed
krita.lib.widgets: Loading resource  "/tmp/.mount_Krita-LMj8rh/usr/share/krita/paintoppresets/Wet_Soft_Tilted.kpp" failed
Loading plugin "/tmp/.mount_Krita-LMj8rh/usr/lib/x86_64-linux-gnu/kritaplugins/krita_tool_basicflakes.so" failed,  "Cannot load library /tmp/.mount_Krita-LMj8rh/usr/lib/x86_64-linux-gnu/kritaplugins/krita_tool_basicflakes.so: (libkritabasicflakes.so.16: cannot open shared object file: No such file or directory)"
Loading plugin "/tmp/.mount_Krita-LMj8rh/usr/lib/x86_64-linux-gnu/kritaplugins/kritadefaulttools.so" failed,  "Cannot load library /tmp/.mount_Krita-LMj8rh/usr/lib/x86_64-linux-gnu/kritaplugins/kritadefaulttools.so: (libkritabasicflakes.so.16: cannot open shared object file: No such file or directory)"
Loading plugin "/tmp/.mount_Krita-LMj8rh/usr/lib/x86_64-linux-gnu/kritaplugins/kritaselectiontools.so" failed,  "Cannot load library /tmp/.mount_Krita-LMj8rh/usr/lib/x86_64-linux-gnu/kritaplugins/kritaselectiontools.so: (libkritabasicflakes.so.16: cannot open shared object file: No such file or directory)"
Loading plugin "/tmp/.mount_Krita-LMj8rh/usr/lib/x86_64-linux-gnu/kritaplugins/kritatouchdocker.so" failed,  "Cannot load library /tmp/.mount_Krita-LMj8rh/usr/lib/x86_64-linux-gnu/kritaplugins/kritatouchdocker.so: (libkritaqml.so.16: cannot open shared object file: No such file or directory)"
input profiles were read from ' /home/boud/.local/share/krita/input '.
Loading plugin "/tmp/.mount_Krita-LMj8rh/usr/lib/x86_64-linux-gnu/kritaplugins/kritapykrita.so" failed,  "Cannot load library /tmp/.mount_Krita-LMj8rh/usr/lib/x86_64-linux-gnu/kritaplugins/kritapykrita.so: (libpython3.5m.so.1.0: cannot open shared object file: No such file or directory)"
Button KoToolBoxButton(0x49a4d30, name="SvgTextTool") has a conflicting priority