cd ~/

mkdir deps
cd deps

# get Skia source code and tools
git clone https://chromium.googlesource.com/chromium/tools/depot_tools.git
git clone -b aseprite-m96 https://github.com/aseprite/skia.git
export PATH="${PWD}/depot_tools:${PATH}"

python3 tools/git-sync-deps

cd skia

# build Skia
gn gen out/Release-x64 --args="is_debug=false is_official_build=true skia_use_system_expat=false skia_use_system_icu=false skia_use_system_libjpeg_turbo=false skia_use_system_libpng=false skia_use_system_libwebp=false skia_use_system_zlib=false skia_use_sfntly=false skia_use_freetype=true skia_use_harfbuzz=true skia_pdf_subset_harfbuzz=true skia_use_system_freetype2=false skia_use_system_harfbuzz=false"

ninja -C out/Release-x64 skia modules

cd ~/

# get Aseprite v1.2.34.1 branch source code
git clone -b v1.2.34.1 --recursive https://github.com/aseprite/aseprite.git

cd aseprite

# make build directory for CMake
mkdir build
cd build

# build Aseprite
cmake \
    -DCMAKE_BUILD_TYPE=RelWithDebInfo \
    -DLAF_BACKEND=skia \
    -DSKIA_DIR=~/deps/skia \
    -DSKIA_LIBRARY_DIR=~/deps/skia/out/Release-x64 \
    -DSKIA_LIBRARY=~/deps/skia/out/Release-x64/libskia.a \
    -G Ninja \
    ..

ninja aseprite