diff --git a/.github/workflows/_build.yml b/.github/workflows/_build.yml
index 6e158da7..e150d785 100644
--- a/.github/workflows/_build.yml
+++ b/.github/workflows/_build.yml
@@ -1,6 +1,10 @@
 name: Build ofLibs
 
 on:
+  # push:
+  #   branches: ["osx10-15-intel"]
+  # workflow_dispatch:
+
   workflow_call:
     inputs:
       lib: { required: true, type: string }
@@ -10,6 +14,20 @@ on:
       brew: { required: false, type: string }
       meson: { required: false, type: boolean }
 
+  workflow_dispatch:
+    inputs:
+      # chosen-os:
+      #   required: true
+      #   type: choice
+      #   options:
+      #     - macOS
+      lib: { required: true, type: string }
+      version: { required: true, type: string }
+      multistrap: { required: false, type: boolean }
+      linux_apt: { required: false, type: string }
+      brew: { required: false, type: string }
+      meson: { required: false, type: boolean }
+
 permissions:
   contents: write
 
@@ -20,17 +38,18 @@ jobs:
       matrix:
         include:
           # - { platform: linux64, os: ubuntu-latest, toolchain: llvm }
-          - { platform: linux64, os: ubuntu-22.04, toolchain: llvm }
-          - { platform: macos, os: macos-26, toolchain: apple-llvm }
-          - { platform: vs, os: windows-latest, toolchain: vs-stable }
-          - {
-              platform: rpi-aarch64,
-              os: ubuntu-22.04-arm,
-              prefix: aarch64-linux-gnu,
-              toolchain: aarch64-linux-gnu-gcc-12,
-            }
-
-          - { platform: emscripten, os: ubuntu-latest, toolchain: emscripten }
+          # - { platform: linux64, os: ubuntu-22.04, toolchain: llvm }
+          - { platform: macos, os: macos-latest, toolchain: apple-llvm }
+          # - { platform: macos, os: macos-13, toolchain: apple-llvm }
+          # - { platform: vs, os: windows-latest, toolchain: vs-stable }
+          # - {
+          #     platform: rpi-aarch64,
+          #     os: ubuntu-22.04-arm,
+          #     prefix: aarch64-linux-gnu,
+          #     toolchain: aarch64-linux-gnu-gcc-12,
+          #   }
+
+          # - { platform: emscripten, os: ubuntu-latest, toolchain: emscripten }
 
           # - {
           #     platform: rpi-armv6l,
@@ -55,7 +74,9 @@ jobs:
           #     # shell: msys2 -c 'source $GITHUB_ENV; export $(cut -d= -f1 $GITHUB_ENV); {0}'
           #   }
 
-    runs-on: ${{ matrix.os }}
+    # runs-on: ${{ matrix.os }}
+    # runs-on: [ ${{ matrix.os }}, self-hosted, ${{ inputs.chosen-os }}"]
+    runs-on: self-hosted
 
     defaults:
       run:
@@ -76,11 +97,11 @@ jobs:
       #     key: ${{ inputs.lib }}-${{ runner.os }}-${{ matrix.platform }}-ccache
       #
       #
-      - name: Windows Setup MSVC
-        if: matrix.platform == 'vs'
-        uses: TheMrMilchmann/setup-msvc-dev@v4
-        with:
-          arch: x64
+      # - name: Windows Setup MSVC
+      #   if: matrix.platform == 'vs'
+      #   uses: TheMrMilchmann/setup-msvc-dev@v4
+      #   with:
+      #     arch: x64
       #
       - name: Install Meson
         if: inputs.meson
@@ -93,12 +114,12 @@ jobs:
       #     packages: ${{ inputs.linux_apt }}
       #     version: 1.0
 
-      - name: Linux Apt Packages
-        if: runner.os == 'Linux' && inputs.linux_apt != ''
-        # if: matrix.platform == 'linux64' && inputs.linux_apt != ''
-        run: |
-          sudo apt-get update -qq
-          sudo apt-get install -y ${{ inputs.linux_apt }}
+      # - name: Linux Apt Packages
+      #   if: runner.os == 'Linux' && inputs.linux_apt != ''
+      #   # if: matrix.platform == 'linux64' && inputs.linux_apt != ''
+      #   run: |
+      #     sudo apt-get update -qq
+      #     sudo apt-get install -y ${{ inputs.linux_apt }}
 
       - name: macOS Brew Packages
         if: runner.os == 'macOS' && inputs.brew != ''
@@ -116,12 +137,12 @@ jobs:
       #     whereis cmake
       #     cmake --version
 
-      - name: Emscripten Install
-        if: matrix.platform == 'emscripten'
-        uses: mymindstorm/setup-emsdk@v14
-        with:
-          version: 4.0.21
-          actions-cache-folder: "emsdk-cache"
+      # - name: Emscripten Install
+      #   if: matrix.platform == 'emscripten'
+      #   uses: mymindstorm/setup-emsdk@v14
+      #   with:
+      #     version: 4.0.21
+      #     actions-cache-folder: "emsdk-cache"
 
       # - name: Verify emsdk
       #   if: matrix.platform == 'emscripten'
@@ -132,10 +153,10 @@ jobs:
       #     emsdk activate latest
       #     emcc -v
 
-      - name: MSYS2 Apt Cross Compile
-        if: matrix.platform == 'msys2' && runner.os == 'Linux'
-        run: |
-          sudo apt install gcc-${{ matrix.prefix }} g++-${{ matrix.prefix }} binutils-${{ matrix.prefix }}
+      # - name: MSYS2 Apt Cross Compile
+      #   if: matrix.platform == 'msys2' && runner.os == 'Linux'
+      #   run: |
+      #     sudo apt install gcc-${{ matrix.prefix }} g++-${{ matrix.prefix }} binutils-${{ matrix.prefix }}
 
       # - name: MSYS2 Windows
       #   if: matrix.platform == 'msys2' && runner.os == 'Windows'
@@ -153,10 +174,10 @@ jobs:
       #     export PATH=$PATH:/c/hostedtoolcache/windows/chalet-org/chalet/latest/windows-x64
       #     chalet --version
 
-      - name: RPI - Compiler
-        if: matrix.platform == 'msys2' && runner.os == 'Linux'
-        run: |
-          sudo apt install gcc g++ binutils
+      # - name: RPI - Compiler
+      #   if: matrix.platform == 'msys2' && runner.os == 'Linux'
+      #   run: |
+      #     sudo apt install gcc g++ binutils
 
       # - name: RPI - Apt Cache Cross Compile (No Multistrap)
       #   if: matrix.platform == 'rpi-aarch64' || matrix.platform == 'rpi-armv6l'
@@ -222,17 +243,17 @@ jobs:
         run: |
           otool -l **/*.a | grep minos
 
-      - name: RPI Verify Library Compatibility
-        if: matrix.platform == 'rpi-aarch64'
-        run: |
-          aarch64-linux-gnu-readelf -d **/*.a 2>/dev/null | grep -E "GLIBC|CXXABI" || true
-          # Should show versions like GLIBC_2.36, NOT 2.38+
+      # - name: RPI Verify Library Compatibility
+      #   if: matrix.platform == 'rpi-aarch64'
+      #   run: |
+      #     aarch64-linux-gnu-readelf -d **/*.a 2>/dev/null | grep -E "GLIBC|CXXABI" || true
+      #     # Should show versions like GLIBC_2.36, NOT 2.38+
 
-      - name: Rename and Publish Release
-        env:
-          # GITHUB_TOKEN: ${{ github.TOKEN }}
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-        run: |
-          mv dist/${{ inputs.lib }}.zip ofLibs_${{ inputs.lib }}_${{ matrix.platform }}.zip
-          ls -alF *.zip
-          gh release upload ${{ inputs.version }} *.zip --clobber
+      # - name: Rename and Publish Release
+      #   env:
+      #     # GITHUB_TOKEN: ${{ github.TOKEN }}
+      #     GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+      #   run: |
+      #     mv dist/${{ inputs.lib }}.zip ofLibs_${{ inputs.lib }}_${{ matrix.platform }}.zip
+      #     ls -alF *.zip
+      #     gh release upload ${{ inputs.version }} *.zip --clobber
diff --git a/.github/workflows/assimp.yml b/.github/workflows/assimp.yml
index f8852c4a..32685ec8 100644
--- a/.github/workflows/assimp.yml
+++ b/.github/workflows/assimp.yml
@@ -5,6 +5,7 @@ on:
     paths:
       - .github/workflows/assimp.yml
       - assimp/**
+  workflow_dispatch:
 
 jobs:
   ci:
diff --git a/.github/workflows/pffft.yml b/.github/workflows/pffft.yml
new file mode 100644
index 00000000..a6f734c7
--- /dev/null
+++ b/.github/workflows/pffft.yml
@@ -0,0 +1,17 @@
+name: pffft
+
+on:
+  push:
+    paths:
+      - .github/workflows/pffft.yml
+      - pffft/**
+
+jobs:
+  ci:
+    permissions:
+      contents: write
+
+    uses: ./.github/workflows/_build.yml
+    # with: { lib: pffft, version: v1.0 }
+    with: { lib: pffft, version: add }
+    secrets: inherit
diff --git a/.github/workflows/pixman.yml b/.github/workflows/pixman.yml
index 4f592e3b..800175d7 100644
--- a/.github/workflows/pixman.yml
+++ b/.github/workflows/pixman.yml
@@ -12,5 +12,5 @@ jobs:
       contents: write
 
     uses: ./.github/workflows/_build.yml
-    with: { lib: pixman, version: v1.0, meson: true }
+    with: { lib: pixman, version: add, meson: true }
     secrets: inherit
diff --git a/.github/workflows/pugixml.yml b/.github/workflows/pugixml.yml
index 39996140..9bfdacec 100644
--- a/.github/workflows/pugixml.yml
+++ b/.github/workflows/pugixml.yml
@@ -6,7 +6,8 @@ on:
     paths:
       - pugixml/**
       - .github/workflows/pugixml.yml
-
+  workflow_dispatch:
+    
 jobs:
   ci:
     permissions:
diff --git a/.gitignore b/.gitignore
index 762c4441..89b9ab6a 100644
--- a/.gitignore
+++ b/.gitignore
@@ -8,3 +8,10 @@ dist/**
 **/build/**
 **/chalet_external/**
 **/dist/**
+
+openssl-curl/Build-OpenSSL-cURL/curl/*/**
+openssl-curl/Build-OpenSSL-cURL/openssl/*/**
+openssl-curl/curl/**
+openssl-curl/*.zip
+mango/*/**
+mango2/*/**
\ No newline at end of file
diff --git a/2/FreeImage/chalet.yaml b/2/FreeImage/chalet.yaml
index 0bda179d..7471468e 100644
--- a/2/FreeImage/chalet.yaml
+++ b/2/FreeImage/chalet.yaml
@@ -80,7 +80,7 @@ targets:
       - CMAKE_EXECUTABLE_SUFFIX=.js
     defines[platform:macos]:
       - CMAKE_OSX_ARCHITECTURES=arm64;x86_64
-      - CMAKE_OSX_DEPLOYMENT_TARGET=11.6
+      - CMAKE_OSX_DEPLOYMENT_TARGET=10.15
 
   libpng:
     kind: cmakeProject
@@ -115,7 +115,7 @@ targets:
       # - ZLIB_ROOT=${externalBuild:zlib}/install
       # - ZLIB_ROOT=${externalBuild:zlib}
     defines[platform:macos]:
-      - CMAKE_OSX_DEPLOYMENT_TARGET=11.6
+      - CMAKE_OSX_DEPLOYMENT_TARGET=10.15
       - CMAKE_OSX_ARCHITECTURES=arm64;x86_64
     defines[:web]:
       # - ZLIB_LIBRARY=${cwd}/${externalBuild:zlib-ng}/ext.zlib-ng/install/lib
@@ -187,7 +187,7 @@ targets:
 
     defines[platform:macos]:
       - CMAKE_OSX_ARCHITECTURES=x86_64;arm64
-      - CMAKE_OSX_DEPLOYMENT_TARGET=11.6
+      - CMAKE_OSX_DEPLOYMENT_TARGET=10.15
       # - CMAKE_C_VISIBILITY_PRESET=hidden
       # - CMAKE_CXX_VISIBILITY_PRESET=hidden
       # - CMAKE_VISIBILITY_INLINES_HIDDEN=ON
@@ -298,7 +298,7 @@ targets:
       #   - LIBTIFF_LIBRARY=${cwd}/${externalBuild:libtiff}/ext.libtiff/install/lib/tiff.lib
 
     defines[platform:macos]:
-      - CMAKE_OSX_DEPLOYMENT_TARGET=11.6
+      - CMAKE_OSX_DEPLOYMENT_TARGET=10.15
       - CMAKE_OSX_ARCHITECTURES=x86_64;arm64
 
     defines[toolchain:msvc]:
diff --git a/2/FreeImageRe/chalet.yaml b/2/FreeImageRe/chalet.yaml
index aaa8b9c7..dd7f5bd1 100644
--- a/2/FreeImageRe/chalet.yaml
+++ b/2/FreeImageRe/chalet.yaml
@@ -56,7 +56,7 @@ targets:
       - ZLIB_INCLUDE_DIRS=${cwd}/${externalBuild:zlib-ng}/ext.zlib-ng/install/include
 
     defines[platform:macos]:
-      - CMAKE_OSX_DEPLOYMENT_TARGET=11.6
+      - CMAKE_OSX_DEPLOYMENT_TARGET=10.15
       - CMAKE_OSX_ARCHITECTURES=x86_64;arm64
 
 distribution:
diff --git a/2/OpenImageIO/chalet.yaml b/2/OpenImageIO/chalet.yaml
index 530fd6dd..e63d338a 100644
--- a/2/OpenImageIO/chalet.yaml
+++ b/2/OpenImageIO/chalet.yaml
@@ -33,7 +33,7 @@ targets:
       - OIIO_BUILD_TESTS=OFF
 
     defines[platform:macos]:
-      - CMAKE_OSX_DEPLOYMENT_TARGET=11.6
+      - CMAKE_OSX_DEPLOYMENT_TARGET=10.15
       # - CMAKE_OSX_ARCHITECTURES=x86_64;arm64
 
 distribution:
diff --git a/2/WiiC/chalet.yaml b/2/WiiC/chalet.yaml
index 80edb748..ef92991f 100644
--- a/2/WiiC/chalet.yaml
+++ b/2/WiiC/chalet.yaml
@@ -25,7 +25,7 @@ targets:
       # - CMAKE_INSTALL_FULL_LIBDIR=lib
     defines[platform:macos]:
       # - CMAKE_OSX_ARCHITECTURES=x86_64;arm64
-      - CMAKE_OSX_DEPLOYMENT_TARGET=11.6
+      - CMAKE_OSX_DEPLOYMENT_TARGET=10.15
   # test:
   #   kind: script
   #   file: test.sh
diff --git a/2/eigen/chalet.yaml b/2/eigen/chalet.yaml
index a73531db..65f32c6b 100644
--- a/2/eigen/chalet.yaml
+++ b/2/eigen/chalet.yaml
@@ -25,7 +25,7 @@ targets:
     defines[platform:macos]:
       # - APPLE_FRAMEWORK=ON
       - CPU_BASELINE=NATIVE
-      - CMAKE_OSX_DEPLOYMENT_TARGET=11.6
+      - CMAKE_OSX_DEPLOYMENT_TARGET=10.15
       - CMAKE_OSX_ARCHITECTURES=x86_64;arm64
 
 distribution:
diff --git a/2/lcms2/chalet.yaml b/2/lcms2/chalet.yaml
index 8d2b0fab..e1b09ba7 100644
--- a/2/lcms2/chalet.yaml
+++ b/2/lcms2/chalet.yaml
@@ -22,8 +22,8 @@ targets:
       # - prefix=${cwd}/${externalBuild:${name}}/install
 
     defines[platform:macos]:
-      - c_args=-mmacos-version-min=11.6
-      - cpp_args=-mmacos-version-min=11.6
+      - c_args=-mmacos-version-min=10.15
+      - cpp_args=-mmacos-version-min=10.15
 
     defines[toolchain:msvc]:
       - b_vscrt=static_from_buildtype
diff --git a/2/libjpeg/chalet.yaml b/2/libjpeg/chalet.yaml
index 80a332d2..d68d2f2e 100644
--- a/2/libjpeg/chalet.yaml
+++ b/2/libjpeg/chalet.yaml
@@ -25,7 +25,7 @@ targets:
 
     defines[platform:macos]:
       - CMAKE_OSX_ARCHITECTURES=x86_64;arm64
-      - CMAKE_OSX_DEPLOYMENT_TARGET=11.6
+      - CMAKE_OSX_DEPLOYMENT_TARGET=10.15
 
 distribution:
   libjpeg:
diff --git a/2/libpng/chalet.yaml b/2/libpng/chalet.yaml
index 7cd2cab4..4086aa2b 100644
--- a/2/libpng/chalet.yaml
+++ b/2/libpng/chalet.yaml
@@ -42,7 +42,7 @@ targets:
       - CMAKE_EXECUTABLE_SUFFIX=.js
     defines[platform:macos]:
       - CMAKE_OSX_ARCHITECTURES=arm64;x86_64
-      - CMAKE_OSX_DEPLOYMENT_TARGET=11.6
+      - CMAKE_OSX_DEPLOYMENT_TARGET=10.15
 
   libpng:
     kind: cmakeProject
@@ -77,7 +77,7 @@ targets:
       # - ZLIB_ROOT=${externalBuild:zlib}/install
       # - ZLIB_ROOT=${externalBuild:zlib}
     defines[platform:macos]:
-      - CMAKE_OSX_DEPLOYMENT_TARGET=11.6
+      - CMAKE_OSX_DEPLOYMENT_TARGET=10.15
       - CMAKE_OSX_ARCHITECTURES=arm64;x86_64
     defines[:web]:
       # - ZLIB_LIBRARY=${cwd}/${externalBuild:zlib-ng}/ext.zlib-ng/install/lib
diff --git a/2/libtiff/chalet.yaml b/2/libtiff/chalet.yaml
index 3e991a78..91bd1ded 100644
--- a/2/libtiff/chalet.yaml
+++ b/2/libtiff/chalet.yaml
@@ -32,7 +32,7 @@ targets:
 
     defines[platform:macos]:
       - CMAKE_OSX_ARCHITECTURES=x86_64;arm64
-      - CMAKE_OSX_DEPLOYMENT_TARGET=11.6
+      - CMAKE_OSX_DEPLOYMENT_TARGET=10.15
 
     defines[toolchain:msvc]:
       - CMAKE_MSVC_RUNTIME_LIBRARY=MultiThreaded
@@ -93,7 +93,7 @@ targets:
 
     defines[platform:macos]:
       - CMAKE_OSX_ARCHITECTURES=x86_64;arm64
-      - CMAKE_OSX_DEPLOYMENT_TARGET=11.6
+      - CMAKE_OSX_DEPLOYMENT_TARGET=10.15
       - CMAKE_C_VISIBILITY_PRESET=hidden
       - CMAKE_CXX_VISIBILITY_PRESET=hidden
       - CMAKE_VISIBILITY_INLINES_HIDDEN=ON
diff --git a/2/libuvc/chalet.yaml b/2/libuvc/chalet.yaml
index b87bb964..d280f2b4 100644
--- a/2/libuvc/chalet.yaml
+++ b/2/libuvc/chalet.yaml
@@ -41,7 +41,7 @@ targets:
   #     # - CMAKE_INSTALL_FULL_LIBDIR=lib
   #   defines[platform:macos]:
   #     - CMAKE_OSX_ARCHITECTURES=x86_64;arm64
-  #     - CMAKE_OSX_DEPLOYMENT_TARGET=11.6
+  #     - CMAKE_OSX_DEPLOYMENT_TARGET=10.15
   libuvc:
     kind: cmakeProject
     location: ${external:${name}}
@@ -85,7 +85,7 @@ targets:
       - LibUSB_FOUND=TRUE
     defines[platform:macos]:
       - CMAKE_OSX_ARCHITECTURES=x86_64;arm64
-      - CMAKE_OSX_DEPLOYMENT_TARGET=11.6
+      - CMAKE_OSX_DEPLOYMENT_TARGET=10.15
 
 distribution:
   libuvc:
diff --git a/2/libxml2/chalet.yaml b/2/libxml2/chalet.yaml
index 1ffc9f56..b388d275 100644
--- a/2/libxml2/chalet.yaml
+++ b/2/libxml2/chalet.yaml
@@ -44,7 +44,7 @@ targets:
 
     defines[platform:macos]:
       - CMAKE_OSX_ARCHITECTURES=x86_64;arm64
-      - CMAKE_OSX_DEPLOYMENT_TARGET=11.6
+      - CMAKE_OSX_DEPLOYMENT_TARGET=10.15
 
   libxml2_install:
     kind: script
diff --git a/2/lzma/chalet.yaml b/2/lzma/chalet.yaml
index 455129a2..88228d7c 100644
--- a/2/lzma/chalet.yaml
+++ b/2/lzma/chalet.yaml
@@ -25,7 +25,7 @@ targets:
 
       - XZ_NLS=OFF #disable translations and avoid libintl
     defines[platform:macos]:
-      - CMAKE_OSX_DEPLOYMENT_TARGET=11.6
+      - CMAKE_OSX_DEPLOYMENT_TARGET=10.15
       - CMAKE_OSX_ARCHITECTURES=x86_64;arm64
 
 distribution:
diff --git a/2/stag/chalet.yaml b/2/stag/chalet.yaml
index bdb17b5c..9c403282 100644
--- a/2/stag/chalet.yaml
+++ b/2/stag/chalet.yaml
@@ -99,7 +99,7 @@ targets:
     defines[platform:macos]:
       - APPLE_FRAMEWORK=ON
       - CPU_BASELINE=NATIVE
-      - CMAKE_OSX_DEPLOYMENT_TARGET=11.6
+      - CMAKE_OSX_DEPLOYMENT_TARGET=10.15
       - CMAKE_OSX_ARCHITECTURES=x86_64;arm64
   stag:
     kind: cmakeProject
@@ -123,7 +123,7 @@ targets:
       # - CMAKE_INSTALL_FULL_LIBDIR=lib
     defines[platform:macos]:
       # - CMAKE_OSX_ARCHITECTURES=x86_64;arm64
-      - CMAKE_OSX_DEPLOYMENT_TARGET=11.6
+      - CMAKE_OSX_DEPLOYMENT_TARGET=10.15
 
 distribution:
   stag:
diff --git a/2/webview/chalet.yaml b/2/webview/chalet.yaml
index f53a3954..da24ff8c 100644
--- a/2/webview/chalet.yaml
+++ b/2/webview/chalet.yaml
@@ -36,7 +36,7 @@ targets:
       # - CMAKE_INSTALL_FULL_LIBDIR=lib
     defines[platform:macos]:
       - CMAKE_OSX_ARCHITECTURES=x86_64;arm64
-      - CMAKE_OSX_DEPLOYMENT_TARGET=11.6
+      - CMAKE_OSX_DEPLOYMENT_TARGET=10.15
 
 distribution:
   chalet:
diff --git a/2/wiiuse/chalet.yaml b/2/wiiuse/chalet.yaml
index a5a37354..e10fa59d 100644
--- a/2/wiiuse/chalet.yaml
+++ b/2/wiiuse/chalet.yaml
@@ -25,7 +25,7 @@ targets:
       # - CMAKE_INSTALL_FULL_LIBDIR=lib
     defines[platform:macos]:
       # - CMAKE_OSX_ARCHITECTURES=x86_64;arm64
-      - CMAKE_OSX_DEPLOYMENT_TARGET=11.6
+      - CMAKE_OSX_DEPLOYMENT_TARGET=10.15
   # test:
   #   kind: script
   #   file: test.sh
diff --git a/2/zlib/chalet.yaml b/2/zlib/chalet.yaml
index 22a635d7..59ba4891 100644
--- a/2/zlib/chalet.yaml
+++ b/2/zlib/chalet.yaml
@@ -29,7 +29,7 @@ targets:
       - CMAKE_EXECUTABLE_SUFFIX=.js
     defines[platform:macos]:
       - CMAKE_OSX_ARCHITECTURES=x86_64;arm64
-      - CMAKE_OSX_DEPLOYMENT_TARGET=11.6
+      - CMAKE_OSX_DEPLOYMENT_TARGET=10.15
 
 distribution:
   zlib:
diff --git a/assimp/chalet.yaml b/assimp/chalet.yaml
index a6f76fcd..afb0e8b0 100644
--- a/assimp/chalet.yaml
+++ b/assimp/chalet.yaml
@@ -60,8 +60,8 @@ targets:
 
     defines[platform:macos]:
       - CMAKE_OSX_ARCHITECTURES=x86_64;arm64
-      - CMAKE_OSX_DEPLOYMENT_TARGET=11.6
-      - DEPLOYMENT_TARGET=11.6
+      - CMAKE_OSX_DEPLOYMENT_TARGET=10.15
+      - DEPLOYMENT_TARGET=10.15
 
     # defines[toolchain:{aarch64-linux-gnu-gcc,arm-linux-gnueabihf-gcc}]:
     # defines[toolchain:arm-linux-gnueabihf-gcc]:
diff --git a/blend2d/chalet.yaml b/blend2d/chalet.yaml
index 3a738aea..daea84f7 100644
--- a/blend2d/chalet.yaml
+++ b/blend2d/chalet.yaml
@@ -29,7 +29,7 @@ targets:
       - BLEND2D_STATIC=ON
       - ASMJIT_DIR=${cwd}/${external:asmjit}
     defines[platform:macos]:
-      - CMAKE_OSX_DEPLOYMENT_TARGET=11.6
+      - CMAKE_OSX_DEPLOYMENT_TARGET=10.15
       # - CMAKE_OSX_ARCHITECTURES=x86_64;arm64
 
 distribution:
diff --git a/brotli/chalet.yaml b/brotli/chalet.yaml
index 8ec9f492..6a8075b1 100644
--- a/brotli/chalet.yaml
+++ b/brotli/chalet.yaml
@@ -27,7 +27,7 @@ targets:
       # - BROTLI_BUNDLED_MODE=ON
     defines[platform:macos]:
       - CMAKE_OSX_ARCHITECTURES=x86_64;arm64
-      - CMAKE_OSX_DEPLOYMENT_TARGET=11.6
+      - CMAKE_OSX_DEPLOYMENT_TARGET=10.15
 
 distribution:
   brotli:
diff --git a/cairo/chalet.yaml b/cairo/chalet.yaml
index 16bc312d..04e4a718 100644
--- a/cairo/chalet.yaml
+++ b/cairo/chalet.yaml
@@ -55,8 +55,8 @@ targets:
       - pixman:vmx=disabled
 
     defines[platform:macos]:
-      - c_args=-mmacos-version-min=11.6
-      - cpp_args=-mmacos-version-min=11.6
+      - c_args=-mmacos-version-min=10.15
+      - cpp_args=-mmacos-version-min=10.15
 
 distribution:
   cairo:
diff --git a/compile.sh b/compile.sh
new file mode 100755
index 00000000..5bee6904
--- /dev/null
+++ b/compile.sh
@@ -0,0 +1,156 @@
+#!/bin/bash
+cd "$(dirname "$0")"
+set -eu
+
+# Utility to compile libraries locally (osx 10.15)
+
+COLOR='\033[0;32m'
+COLOR2='\033[0;34m'
+COLOR3='\033[0;95m'
+NC='\033[0m' # No Color
+
+section() {
+	# printf "⚡️ ${COLOR}%s${NC}\n" "$*"
+	printf "${COLOR}%s${NC}\n" "$*"
+}
+
+sectionOK() {
+	printf "💾 ${COLOR}%s${NC}\n" "$*"
+}
+
+executa2() {
+	printf "✅ ${COLOR2}%s${NC}\n" "$*"
+}
+
+executa() {
+	printf "✅ ${COLOR2}%s${NC}\n" "$*"
+	"$@"
+}
+
+alert() {
+	printf "⚠️ ${COLOR2}%s${NC}\n" "$*"
+}
+
+# Parse `-y` and `--yes` script args
+YES_ARG=false
+argi=0
+while (( argi <= $# )); do
+    case "${!argi}" in
+        -y|--yes) YES_ARG=true ;;
+    esac
+    ((argi++))
+done
+
+# Helper to prompt before continue (default to yes)
+confirmYes() {
+    # Auto‑accept when invoked with `-y` or `--yes`
+    if $YES_ARG; then
+    	[[ true ]]
+    else
+    	# Userprompt
+    	local prompt="$1"
+    	read -r -p "$prompt [n/Y] " reply
+    	[[ -z "$reply" || "$reply" =~ ^[Yy] ]]
+   	fi
+}
+
+# The libraries
+LIBRARIES=(
+	"assimp"
+	"blend2d"
+	"brotli"
+	"cairo"
+	"cpp-httplib"
+	"fmt"
+	"freetype"
+	"glew"
+	"glfw"
+	"glm"
+	"json"
+	"kissfft"
+	"libusb"
+	#"mango"
+	#"mango2"
+	"opencv"
+	# "opencv-dnn"
+	"openssl-curl"
+	"pixman"
+	"poco"
+	"pugixml"
+	"rtAudio"
+	"tess2"
+	"uriparser"
+	"utfcpp"
+	# "videoInput"
+	"yaml-cpp"
+	"zlib-ng"
+	"zstd"
+)
+
+# To enable a single lib
+# LIBRARIES=( "openssl-curl" )
+
+# tmp: to enable problematic libs on osx 10.15
+if false; then
+	LIBRARIES=(
+		"mango"
+		#error "MANGO requires C++20 or later."
+		"mango2"
+		#error "MANGO requires C++20 or later."
+		"opencv-dnn"
+		# ERROR: There was a problem resolving the included paths for the 'opencv-dnn' target. Check that they exist and glob patterns can be resolved.
+		# ERROR: chalet.yaml: Distribution target 'opencv-dnn' has an unsupported variable in: ${externalBuild:opencv-dnn}/install/include
+		# ERROR: chalet.yaml: External dependency 'opencv-dnn' does not exist.
+		"videoInput"
+		# FAILED: [code=1] CMakeFiles/videoInput.dir/videoInput.cpp.o 
+		# 	/usr/bin/clang++  -I/ofLibs/videoInput/videoInput/. -O3 -DNDEBUG -arch x86_64 -isysroot /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk -mmacosx-version-min=10.15 -fPIC -MD -MT CMakeFiles/videoInput.dir/videoInput.cpp.o -MF CMakeFiles/videoInput.dir/videoInput.cpp.o.d -o CMakeFiles/videoInput.dir/videoInput.cpp.o -c /ofLibs/videoInput/videoInput/videoInput.cpp
+		# 	In file included from /ofLibs/videoInput/videoInput/videoInput.cpp:11:
+		# 	/ofLibs/videoInput/videoInput/./videoInput.h:56:10: fatal error: 'windows.h' file not found
+		# 	#include <windows.h>
+	)
+fi
+
+LIBRARIES_COUNT=${#LIBRARIES[@]}
+
+# HelloWorld
+section "Welcome to the ofLibs compilation script"
+echo " - There are $LIBRARIES_COUNT libraries."
+
+# Execute
+if confirmYes " - Continue with compilation ?"; then
+	SUCCESS=0
+    FAILURES=0
+
+    if [[ ${#LIBRARIES[@]} -gt 0 ]]; then
+		for LIBRARY_FOLDER in "${LIBRARIES[@]}"; do
+		    section "Compiling ${LIBRARY_FOLDER}..."
+		    cd ./${LIBRARY_FOLDER}
+
+		    skipped=0
+		    # Chalet project ?
+		    if [[ -f "./chalet.yaml" ]]; then
+				chalet bundle
+			# Bash script ?
+			elif [[ -f "./$LIBRARY_FOLDER.sh" ]]; then
+				./${LIBRARY_FOLDER}.sh
+			else
+				alert "Skipping compilation of ${LIBRARY_FOLDER}. It's not a chalet project neither a bash script."
+				skipped=1
+			fi
+
+			# Count failures
+			if [[ $? -eq 0 && skipped -eq 0 ]]; then
+	            ((SUCCESS++))
+	        else
+	            ((FAILURES++))
+	        fi
+			cd ../
+		done
+	fi
+
+	echo " "
+	sectionOK "Successfully compiled $SUCCESS/$LIBRARIES_COUNT libraries !"
+	[[ $FAILURES -gt 0 ]] && alert "${FAILURES} libraries failed to build!"
+else
+	echo "Bye bye."
+fi
\ No newline at end of file
diff --git a/cpp-httplib/chalet.yaml b/cpp-httplib/chalet.yaml
index 4f8449bc..d9891453 100644
--- a/cpp-httplib/chalet.yaml
+++ b/cpp-httplib/chalet.yaml
@@ -22,7 +22,7 @@ targets:
       - CMAKE_INSTALL_INCLUDEDIR=include
       - CMAKE_INSTALL_LIBDIR=lib
     defines[platform:macos]:
-      - CMAKE_OSX_DEPLOYMENT_TARGET=11.6
+      - CMAKE_OSX_DEPLOYMENT_TARGET=10.15
       - CMAKE_OSX_ARCHITECTURES=x86_64;arm64
 
 distribution:
diff --git a/fmt/chalet.yaml b/fmt/chalet.yaml
index 03ffd928..5edf3981 100644
--- a/fmt/chalet.yaml
+++ b/fmt/chalet.yaml
@@ -22,7 +22,7 @@ targets:
       - CMAKE_INSTALL_INCLUDEDIR=include
       - CMAKE_INSTALL_LIBDIR=lib
     defines[platform:macos]:
-      - CMAKE_OSX_DEPLOYMENT_TARGET=11.6
+      - CMAKE_OSX_DEPLOYMENT_TARGET=10.15
       - CMAKE_OSX_ARCHITECTURES=x86_64;arm64
 
 distribution:
diff --git a/freetype/chalet.yaml b/freetype/chalet.yaml
index 0644720f..dcf5de6d 100644
--- a/freetype/chalet.yaml
+++ b/freetype/chalet.yaml
@@ -82,7 +82,7 @@ targets:
     # - ZLIB_INCLUDE_DIRS=${external:zlib}
     # - ZLIB_INCLUDE_DIR=${external:zlib}
     defines[platform:macos]:
-      - CMAKE_OSX_DEPLOYMENT_TARGET=11.6
+      - CMAKE_OSX_DEPLOYMENT_TARGET=10.15
       - CMAKE_OSX_ARCHITECTURES=x86_64;arm64
 
 distribution:
diff --git a/glew/chalet.yaml b/glew/chalet.yaml
index 89cefa64..35420172 100644
--- a/glew/chalet.yaml
+++ b/glew/chalet.yaml
@@ -23,7 +23,7 @@ targets:
       # - CMAKE_ARCHIVE_OUTPUT_DIRECTORY=lib
 
     defines[platform:macos]:
-      - CMAKE_OSX_DEPLOYMENT_TARGET=11.6
+      - CMAKE_OSX_DEPLOYMENT_TARGET=10.15
       - CMAKE_OSX_ARCHITECTURES=x86_64;arm64
     # FIXME: remove - only a test to see if it works as a parameter
     # defines[toolchain:aarch64-linux-gnu-gcc]:
diff --git a/glfw/chalet.yaml b/glfw/chalet.yaml
index 38de9846..b895c9d9 100644
--- a/glfw/chalet.yaml
+++ b/glfw/chalet.yaml
@@ -33,7 +33,7 @@ targets:
       - GLFW_BUILD_WAYLAND=ON
 
     defines[platform:macos]:
-      - CMAKE_OSX_DEPLOYMENT_TARGET=11.6
+      - CMAKE_OSX_DEPLOYMENT_TARGET=10.15
       - CMAKE_OSX_ARCHITECTURES=x86_64;arm64
 
     defines[:web]:
diff --git a/glm/chalet.yaml b/glm/chalet.yaml
index 93644537..a504bb8e 100644
--- a/glm/chalet.yaml
+++ b/glm/chalet.yaml
@@ -37,7 +37,7 @@ targets:
       - GLM_ENABLE_SIMD_AVX2=OFF
       - CMAKE_CXX_FLAGS="-msimd128"
     defines[platform:macos]:
-      - CMAKE_OSX_DEPLOYMENT_TARGET=11.6
+      - CMAKE_OSX_DEPLOYMENT_TARGET=10.15
       - CMAKE_OSX_ARCHITECTURES=x86_64;arm64
 
     defines[architecture:arm]:
diff --git a/json/chalet.yaml b/json/chalet.yaml
index 01766b26..f11a1bd7 100644
--- a/json/chalet.yaml
+++ b/json/chalet.yaml
@@ -21,7 +21,7 @@ targets:
 
     defines[platform:macos]:
       - CMAKE_OSX_ARCHITECTURES=x86_64;arm64
-      - CMAKE_OSX_DEPLOYMENT_TARGET=11.6
+      - CMAKE_OSX_DEPLOYMENT_TARGET=10.15
 
 distribution:
   json:
diff --git a/kissfft/chalet.yaml b/kissfft/chalet.yaml
index dde94cb7..928c707d 100644
--- a/kissfft/chalet.yaml
+++ b/kissfft/chalet.yaml
@@ -27,7 +27,7 @@ targets:
       - KISSFFT_TOOLS=OFF
       - KISSFFT_TEST=OFF
     defines[platform:macos]:
-      - CMAKE_OSX_DEPLOYMENT_TARGET=11.6
+      - CMAKE_OSX_DEPLOYMENT_TARGET=10.15
       - CMAKE_OSX_ARCHITECTURES=x86_64;arm64
 
 distribution:
diff --git a/libusb/chalet.yaml b/libusb/chalet.yaml
index 9cc1fd54..6afa4200 100644
--- a/libusb/chalet.yaml
+++ b/libusb/chalet.yaml
@@ -25,7 +25,7 @@ targets:
       # - CMAKE_INSTALL_FULL_LIBDIR=lib
     defines[platform:macos]:
       - CMAKE_OSX_ARCHITECTURES=x86_64;arm64
-      - CMAKE_OSX_DEPLOYMENT_TARGET=11.6
+      - CMAKE_OSX_DEPLOYMENT_TARGET=10.15
 
 distribution:
   libusb:
diff --git a/mango/chalet.yaml b/mango/chalet.yaml
index a4967ad3..d7e45f51 100644
--- a/mango/chalet.yaml
+++ b/mango/chalet.yaml
@@ -87,7 +87,7 @@ targets:
       - CMAKE_EXECUTABLE_SUFFIX=.js
     defines[platform:macos]:
       - CMAKE_OSX_ARCHITECTURES=arm64;x86_64
-      - CMAKE_OSX_DEPLOYMENT_TARGET=11.6
+      - CMAKE_OSX_DEPLOYMENT_TARGET=10.15
 
   # fmt:
   #   kind: chaletProject
@@ -110,7 +110,7 @@ targets:
       # - CMAKE_INSTALL_LIBDIR=lib
       # - CMAKE_INSTALL_LIBDIR=lib
     defines[platform:macos]:
-      - CMAKE_OSX_DEPLOYMENT_TARGET=11.6
+      - CMAKE_OSX_DEPLOYMENT_TARGET=10.15
       - CMAKE_OSX_ARCHITECTURES=x86_64;arm64
 
   zstd:
@@ -132,7 +132,7 @@ targets:
       # - CMAKE_MSVC_RUNTIME_LIBRARY=MultiThreaded
 
     defines[platform:macos]:
-      - CMAKE_OSX_DEPLOYMENT_TARGET=11.6
+      - CMAKE_OSX_DEPLOYMENT_TARGET=10.15
       - CMAKE_OSX_ARCHITECTURES=x86_64;arm64
 
     defines[toolchain:msvc]:
@@ -154,7 +154,7 @@ targets:
       - LZ4_BUILD_CLI=OFF
 
     defines[platform:macos]:
-      - CMAKE_OSX_DEPLOYMENT_TARGET=11.6
+      - CMAKE_OSX_DEPLOYMENT_TARGET=10.15
       - CMAKE_OSX_ARCHITECTURES=x86_64;arm64
 
   bzip2:
@@ -178,7 +178,7 @@ targets:
       - CMAKE_INSTALL_LIBDIR=lib
       - CMAKE_MSVC_RUNTIME_LIBRARY=MultiThreaded
     defines[platform:macos]:
-      - CMAKE_OSX_DEPLOYMENT_TARGET=11.6
+      - CMAKE_OSX_DEPLOYMENT_TARGET=10.15
       - CMAKE_OSX_ARCHITECTURES=x86_64;arm64
 
   deflate:
@@ -202,7 +202,7 @@ targets:
       - CMAKE_MSVC_RUNTIME_LIBRARY=MultiThreaded
 
     defines[platform:macos]:
-      - CMAKE_OSX_DEPLOYMENT_TARGET=11.6
+      - CMAKE_OSX_DEPLOYMENT_TARGET=10.15
       - CMAKE_OSX_ARCHITECTURES=x86_64;arm64
 
   lcms2:
@@ -218,7 +218,7 @@ targets:
       - CMAKE_MSVC_RUNTIME_LIBRARY=MultiThreaded
       - BUILD_TESTS=OFF
     defines[platform:macos]:
-      - CMAKE_OSX_DEPLOYMENT_TARGET=11.6
+      - CMAKE_OSX_DEPLOYMENT_TARGET=10.15
       - CMAKE_OSX_ARCHITECTURES=x86_64;arm64
 
     defines[toolchain:msvc]:
@@ -238,8 +238,8 @@ targets:
   #     # - prefix=${cwd}/${externalBuild:${name}}/install
 
   #   defines[platform:macos]:
-  #     - c_args=-mmacos-version-min=11.6
-  #     - cpp_args=-mmacos-version-min=11.6
+  #     - c_args=-mmacos-version-min=10.15
+  #     - cpp_args=-mmacos-version-min=10.15
 
   #   defines[toolchain:msvc]:
   #     - b_vscrt=static_from_buildtype
@@ -258,13 +258,14 @@ targets:
       - BUILD_SHARED_LIBS=OFF
       - BUILD_STATIC_LIBS=ON
 
+      - ENABLE_SSE4=ON
       # - BUILD_OPENGL=OFF
-
       - CMAKE_MSVC_RUNTIME_LIBRARY=MultiThreaded
-
       - LIBRARY_DISABLE=ON
-
       - PKG_CONFIG_PATH=${cwd}/${externalBuild:lcms2}/install/lib/pkgconfig
+      - CMAKE_LIBRARY_PATH=${cwd}/${externalBuild:lcms2}/install/lib
+      - CMAKE_INCLUDE_PATH=${cwd}/${externalBuild:lcms2}/install/include
+      - CMAKE_PREFIX_PATH=${cwd}/${externalBuild:fmt}/install;${cwd}/${externalBuild:zlib-ng}/install;${cwd}/${externalBuild:lcms2}/install;${cwd}/${externalBuild:deflate}/install;${cwd}/${externalBuild:zstd}/install;${cwd}/${externalBuild:lz4}/install;${cwd}/${externalBuild:bzip2}/install
 
       # - LCMS2_ROOT=${cwd}/${externalBuild:lcms2}/install/opt/homebrew/
       # - LCMS2_INCLUDE_DIRS=${cwd}/${externalBuild:lcms2}/install/include
@@ -295,9 +296,6 @@ targets:
       # - BZIP2_LIBRARIES=${cwd}/${externalBuild:bzip2}/install/lib/${ar:bzip2}
 
       #${cwd}/{fmt};${cwd}/{zlib-ng-archive}
-      - CMAKE_LIBRARY_PATH=${cwd}/${externalBuild:lcms2}/install/lib
-      - CMAKE_INCLUDE_PATH=${cwd}/${externalBuild:lcms2}/install/include
-      - CMAKE_PREFIX_PATH=${cwd}/${externalBuild:fmt}/install;${cwd}/${externalBuild:zlib-ng}/install;${cwd}/${externalBuild:lcms2}/install;${cwd}/${externalBuild:deflate}/install;${cwd}/${externalBuild:zstd}/install;${cwd}/${externalBuild:lz4}/install;${cwd}/${externalBuild:bzip2}/install
 
       # ${cwd}/${external:zlib-ng-archive}
       # ${cwd}/${externalBuild:zlib-ng}/ext.zlib-ng/install;
@@ -326,7 +324,7 @@ targets:
     defines[platform:macos]:
       # - CMAKE_PREFIX_PATH=${cwd}/${externalBuild:lcms2}/install/opt/homebrew;${cwd}/${externalBuild:deflate}/install;${cwd}/${externalBuild:fmt}/ext.fmt/install;${cwd}/${externalBuild:zlib-ng}/ext.zlib-ng/install;${cwd}/${externalBuild:zstd}/install;${cwd}/${externalBuild:lz4}/install;${cwd}/${externalBuild:bzip2}/install
 
-      - CMAKE_OSX_DEPLOYMENT_TARGET=11.6
+      - CMAKE_OSX_DEPLOYMENT_TARGET=10.15
       - CMAKE_OSX_ARCHITECTURES=x86_64;arm64
     defines[toolchain:msvc]:
       # temporary, only to have a verbose output.
diff --git a/mango2/chalet.yaml b/mango2/chalet.yaml
index 45954421..f4fd5662 100644
--- a/mango2/chalet.yaml
+++ b/mango2/chalet.yaml
@@ -84,7 +84,7 @@ targets:
       - CMAKE_EXECUTABLE_SUFFIX=.js
     defines[platform:macos]:
       - CMAKE_OSX_ARCHITECTURES=arm64;x86_64
-      - CMAKE_OSX_DEPLOYMENT_TARGET=11.6
+      - CMAKE_OSX_DEPLOYMENT_TARGET=10.15
 
   # fmt:
   #   kind: chaletProject
@@ -107,7 +107,7 @@ targets:
       # - CMAKE_INSTALL_LIBDIR=lib
       # - CMAKE_INSTALL_LIBDIR=lib
     defines[platform:macos]:
-      - CMAKE_OSX_DEPLOYMENT_TARGET=11.6
+      - CMAKE_OSX_DEPLOYMENT_TARGET=10.15
       - CMAKE_OSX_ARCHITECTURES=x86_64;arm64
 
   zstd:
@@ -129,7 +129,7 @@ targets:
       # - CMAKE_MSVC_RUNTIME_LIBRARY=MultiThreaded
 
     defines[platform:macos]:
-      - CMAKE_OSX_DEPLOYMENT_TARGET=11.6
+      - CMAKE_OSX_DEPLOYMENT_TARGET=10.15
       - CMAKE_OSX_ARCHITECTURES=x86_64;arm64
 
     defines[toolchain:msvc]:
@@ -151,7 +151,7 @@ targets:
       - LZ4_BUILD_CLI=OFF
 
     defines[platform:macos]:
-      - CMAKE_OSX_DEPLOYMENT_TARGET=11.6
+      - CMAKE_OSX_DEPLOYMENT_TARGET=10.15
       - CMAKE_OSX_ARCHITECTURES=x86_64;arm64
 
   bzip2:
@@ -175,7 +175,7 @@ targets:
       - CMAKE_INSTALL_LIBDIR=lib
       - CMAKE_MSVC_RUNTIME_LIBRARY=MultiThreaded
     defines[platform:macos]:
-      - CMAKE_OSX_DEPLOYMENT_TARGET=11.6
+      - CMAKE_OSX_DEPLOYMENT_TARGET=10.15
       - CMAKE_OSX_ARCHITECTURES=x86_64;arm64
 
   deflate:
@@ -199,7 +199,7 @@ targets:
       - CMAKE_MSVC_RUNTIME_LIBRARY=MultiThreaded
 
     defines[platform:macos]:
-      - CMAKE_OSX_DEPLOYMENT_TARGET=11.6
+      - CMAKE_OSX_DEPLOYMENT_TARGET=10.15
       - CMAKE_OSX_ARCHITECTURES=x86_64;arm64
 
   lcms2:
@@ -216,8 +216,8 @@ targets:
       # - prefix=${cwd}/${externalBuild:${name}}/install
 
     defines[platform:macos]:
-      - c_args=-mmacos-version-min=11.6
-      - cpp_args=-mmacos-version-min=11.6
+      - c_args=-mmacos-version-min=10.15
+      - cpp_args=-mmacos-version-min=10.15
 
     defines[toolchain:msvc]:
       - b_vscrt=static_from_buildtype
@@ -299,7 +299,7 @@ targets:
     defines[platform:macos]:
       # - CMAKE_PREFIX_PATH=${cwd}/${externalBuild:lcms2}/install/opt/homebrew;${cwd}/${externalBuild:deflate}/install;${cwd}/${externalBuild:fmt}/ext.fmt/install;${cwd}/${externalBuild:zlib-ng}/ext.zlib-ng/install;${cwd}/${externalBuild:zstd}/install;${cwd}/${externalBuild:lz4}/install;${cwd}/${externalBuild:bzip2}/install
 
-      - CMAKE_OSX_DEPLOYMENT_TARGET=11.6
+      - CMAKE_OSX_DEPLOYMENT_TARGET=10.15
       # - CMAKE_OSX_ARCHITECTURES=x86_64;arm64
     defines[toolchain:msvc]:
       # temporary, only to have a verbose output.
diff --git a/opencv-dnn/chalet.yaml b/opencv-dnn/chalet.yaml
index ede7a0b1..ee11ee79 100644
--- a/opencv-dnn/chalet.yaml
+++ b/opencv-dnn/chalet.yaml
@@ -118,7 +118,7 @@ targets:
 
     defines[platform:macos]:
       - APPLE_FRAMEWORK=ON
-      - CMAKE_OSX_DEPLOYMENT_TARGET=11.6
+      - CMAKE_OSX_DEPLOYMENT_TARGET=10.15
       # Fixme: build separate archs then lipo them together
       # - CMAKE_OSX_ARCHITECTURES=x86_64;arm64
       - CMAKE_OSX_ARCHITECTURES=arm64
diff --git a/opencv/chalet.yaml b/opencv/chalet.yaml
index 88e49073..a619389a 100644
--- a/opencv/chalet.yaml
+++ b/opencv/chalet.yaml
@@ -118,7 +118,7 @@ targets:
 
     defines[platform:macos]:
       - APPLE_FRAMEWORK=ON
-      - CMAKE_OSX_DEPLOYMENT_TARGET=11.6
+      - CMAKE_OSX_DEPLOYMENT_TARGET=10.15
       # Fixme: build separate archs then lipo them together
       # - CMAKE_OSX_ARCHITECTURES=x86_64;arm64
       - CMAKE_OSX_ARCHITECTURES=arm64
diff --git a/openssl-curl/Build-OpenSSL-cURL/build.sh b/openssl-curl/Build-OpenSSL-cURL/build.sh
index 0b20ef52..3d7a1d19 100755
--- a/openssl-curl/Build-OpenSSL-cURL/build.sh
+++ b/openssl-curl/Build-OpenSSL-cURL/build.sh
@@ -403,9 +403,39 @@ echo
 # create universal Mac binaries and run test
 echo -e "${bold}Archiving Mac binaries for curl and openssl...${dim}"
 echo "  See $ARCHIVE/bin"
-lipo -create -output $ARCHIVE/bin/curl /tmp/curl-x86_64 /tmp/curl-arm64
+
+echo -e "${bold}Building Mac libraries${dim}"
+if [[ -n "$MACOS_X86_64_VERSION" && "$MACOS_X86_64_VERSION" != "-1" ]]; then
+	buildMac "x86_64"
+fi
+if [[ -n "$MACOS_ARM64_VERSION" && "$MACOS_ARM64_VERSION" != "-1" ]]; then
+	buildMac "arm64"
+fi
+if [[ "$MACOS_ARM64_VERSION" == "-1" || "$MACOS_X86_64_VERSION" == "-1" ]]; then
+	# Note: either 1 or the other, otherwise arm get overwritten by intel
+	if [[ "$MACOS_ARM64_VERSION" != "-1" ]]; then
+		cp "/tmp/curl-arm64" Mac/lib/libcrypto.a
+	fi
+	if [[ "$MACOS_X86_64_VERSION" != "-1" ]]; then
+		cp "/tmp/curl-x86_64" Mac/lib/libcrypto.a
+	fi
+	# lipo -create -output $ARCHIVE/bin/curl /tmp/curl-x86_64
+else
+	lipo -create -output $ARCHIVE/bin/curl /tmp/curl-x86_64 /tmp/curl-arm64
+fi
 mv /tmp/curl-* $ARCHIVE/bin
-lipo -create -output $ARCHIVE/bin/openssl /tmp/openssl-x86_64 /tmp/openssl-arm64
+
+if [[ "$MACOS_ARM64_VERSION" == "-1" || "$MACOS_X86_64_VERSION" == "-1" ]]; then
+	# Note: either 1 or the other, otherwise arm get overwritten by intel
+	if [[ "$MACOS_ARM64_VERSION" != "-1" ]]; then
+		cp "$ARCHIVE/bin/openssl" /tmp/openssl-arm64
+	fi
+	if [[ "$MACOS_X86_64_VERSION" != "-1" ]]; then
+		cp "$ARCHIVE/bin/openssl" /tmp/openssl-x86_64
+	fi
+else
+	lipo -create -output $ARCHIVE/bin/openssl /tmp/openssl-x86_64 /tmp/openssl-arm64
+fi
 mv /tmp/openssl-* $ARCHIVE/bin
 echo
 echo -e "${bold}Testing Universal Mac binaries for ${BUILD_MACHINE}...${dim}"
diff --git a/openssl-curl/Build-OpenSSL-cURL/curl/libcurl-build.sh b/openssl-curl/Build-OpenSSL-cURL/curl/libcurl-build.sh
index ed97b154..5ce6ef62 100755
--- a/openssl-curl/Build-OpenSSL-cURL/curl/libcurl-build.sh
+++ b/openssl-curl/Build-OpenSSL-cURL/curl/libcurl-build.sh
@@ -561,16 +561,31 @@ if [ ${FORCE_SSLV3} == 'yes' ]; then
 fi
 
 echo -e "${bold}Building Mac libraries${dim}"
-buildMac "x86_64"
-buildMac "arm64"
+if [[ -n "$MACOS_X86_64_VERSION" && "$MACOS_X86_64_VERSION" != "-1" ]]; then
+	buildMac "x86_64"
+fi
+if [[ -n "$MACOS_ARM64_VERSION" && "$MACOS_ARM64_VERSION" != "-1" ]]; then
+	buildMac "arm64"
+fi
 
 echo -e "  ${dim}Copying headers"
 cp /tmp/${CURL_VERSION}-x86_64/include/curl/* include/curl/
 
-lipo \
-	"/tmp/${CURL_VERSION}-x86_64/lib/libcurl.a" \
-	"/tmp/${CURL_VERSION}-arm64/lib/libcurl.a" \
-	-create -output lib/libcurl.a
+if [[ "$MACOS_ARM64_VERSION" == "-1" || "$MACOS_X86_64_VERSION" == "-1" ]]; then
+	# Note: either 1 or the other, otherwise arm get overwritten by intel
+	if [[ "$MACOS_ARM64_VERSION" != "-1" ]]; then
+		cp "/tmp/${CURL_VERSION}-arm64/lib/libcurl.a" lib/libcurl.a
+	fi
+	if [[ "$MACOS_X86_64_VERSION" != "-1" ]]; then
+		cp "/tmp/${CURL_VERSION}-x86_64/lib/libcurl.a" lib/libcurl.a
+	fi
+else
+	lipo \
+		"/tmp/${CURL_VERSION}-x86_64/lib/libcurl.a" \
+		"/tmp/${CURL_VERSION}-arm64/lib/libcurl.a" \
+		-create -output lib/libcurl.a
+fi
+
 
 # if [ $catalyst == "1" ]; then
 # echo -e "${bold}Building Catalyst libraries${dim}"
diff --git a/openssl-curl/Build-OpenSSL-cURL/openssl/openssl-build-phase1.sh b/openssl-curl/Build-OpenSSL-cURL/openssl/openssl-build-phase1.sh
index b11d907f..7074bcb6 100755
--- a/openssl-curl/Build-OpenSSL-cURL/openssl/openssl-build-phase1.sh
+++ b/openssl-curl/Build-OpenSSL-cURL/openssl/openssl-build-phase1.sh
@@ -488,21 +488,47 @@ fi
 
 ## Mac
 echo -e "${bold}Building Mac libraries${dim}"
-buildMac "x86_64"
-buildMac "arm64"
+if [[ -n "$MACOS_X86_64_VERSION" && "$MACOS_X86_64_VERSION" != "-1" ]]; then
+	buildMac "x86_64"
+fi
+if [[ -n "$MACOS_ARM64_VERSION" && "$MACOS_ARM64_VERSION" != "-1" ]]; then
+	buildMac "arm64"
+fi
 
 echo -e "  ${dim}Copying headers and libraries"
 cp /tmp/${OPENSSL_VERSION}-x86_64/include/openssl/* Mac/include/openssl/
 
-lipo \
-	"/tmp/${OPENSSL_VERSION}-x86_64/lib/libcrypto.a" \
-	"/tmp/${OPENSSL_VERSION}-arm64/lib/libcrypto.a" \
-	-create -output Mac/lib/libcrypto.a
+if [[ "$MACOS_ARM64_VERSION" == "-1" || "$MACOS_X86_64_VERSION" == "-1" ]]; then
+	# Note: either 1 or the other, otherwise arm get overwritten by intel
+	if [[ "$MACOS_ARM64_VERSION" != "-1" ]]; then
+		cp "/tmp/${OPENSSL_VERSION}-arm64/lib/libcrypto.a" Mac/lib/libcrypto.a
+	fi
+	if [[ "$MACOS_X86_64_VERSION" != "-1" ]]; then
+		cp "/tmp/${OPENSSL_VERSION}-x86_64/lib/libcrypto.a" Mac/lib/libcrypto.a
+	fi
+else
+	lipo \
+		"/tmp/${OPENSSL_VERSION}-x86_64/lib/libcrypto.a" \
+		"/tmp/${OPENSSL_VERSION}-arm64/lib/libcrypto.a" \
+		-create -output Mac/lib/libcrypto.a
+fi
+
+if [[ "$MACOS_ARM64_VERSION" == "-1" || "$MACOS_X86_64_VERSION" == "-1" ]]; then
+	# Note: either 1 or the other, otherwise arm get overwritten by intel
+	if [[ "$MACOS_ARM64_VERSION" != "-1" ]]; then
+		cp "/tmp/${OPENSSL_VERSION}-arm64/lib/libssl.a" Mac/lib/libssl.a
+	fi
+	if [[ "$MACOS_X86_64_VERSION" != "-1" ]]; then
+		cp "/tmp/${OPENSSL_VERSION}-x86_64/lib/libssl.a" Mac/lib/libssl.a
+	fi
+else
+	lipo \
+		"/tmp/${OPENSSL_VERSION}-x86_64/lib/libssl.a" \
+		"/tmp/${OPENSSL_VERSION}-arm64/lib/libssl.a" \
+		-create -output Mac/lib/libssl.a
+fi
+
 
-lipo \
-	"/tmp/${OPENSSL_VERSION}-x86_64/lib/libssl.a" \
-	"/tmp/${OPENSSL_VERSION}-arm64/lib/libssl.a" \
-	-create -output Mac/lib/libssl.a
 
 ## Catalyst
 # if [ $catalyst == "1" ]; then
diff --git a/openssl-curl/openssl-curl.sh b/openssl-curl/openssl-curl.sh
index 666742f6..658563a1 100755
--- a/openssl-curl/openssl-curl.sh
+++ b/openssl-curl/openssl-curl.sh
@@ -4,25 +4,40 @@ set -e
 if [[ "$PWD" == "/Users/d/src/ofLibs/openssl-curl" ]]; then
 echo "Local developtment"
 PLATFORM=macos
+else
+# todo
+PLATFORM=macos
+fi
+
+if [[ -z "${PLATFORM}" ]]; then
+	echo "Error: This script requires a PLATFORM to run correctly ! Aborting."
+	exit 0;
 fi
+
 cd "$(dirname "$0")"
 cd Build-OpenSSL-cURL
 # ./build.sh -o 3.0.15 -c 8.14.1 -d -i 11.0 -a 11.0
-./build.sh -o 3.5.2 -c 8.15.0 -d -i 11.6 -a 11.6
+# ./build.sh -o 3.5.2 -c 8.15.0 -d -i 10.15 -a 11.0
+./build.sh -o 3.5.2 -c 8.15.0 -d -i 10.15 -a -1
 
 # mkdir dist
 
+echo "[Packaging]"
+echo "Gathering curl files..."
 cd ..
 mkdir -p curl
 cd curl
 cp -r ../Build-OpenSSL-cURL/curl/include .
 cp -r ../Build-OpenSSL-cURL/curl/lib .
 cp ../Build-OpenSSL-cURL/curl/curl*/COPYING .
+echo "Copying libraries to lib/${PLATFORM}..."
 mkdir -p lib/${PLATFORM}
 mv lib/*.a lib/${PLATFORM}
+echo "Compressing Release : ofLibs_curl_${PLATFORM}.zip"
 zip -r ../ofLibs_curl_${PLATFORM}.zip lib include
 cd ..
 
+echo "Gathering openssl files..."
 mkdir -p openssl
 cd openssl
 cp -r ../Build-OpenSSL-cURL/openssl/Mac/include .
@@ -34,8 +49,10 @@ cp -r ../Build-OpenSSL-cURL/openssl/Mac/lib .
 # cp ../Build-OpenSSL-cURL/openssl/openssl*/LICENSE.* .
 # exit 1
 
+echo "Copying libraries to lib/${PLATFORM}..."
 mkdir -p lib/${PLATFORM}
 mv lib/*.a lib/${PLATFORM}
 
+echo "Compressing Release : ofLibs_openssl_${PLATFORM}.zip"
 zip -r ../ofLibs_openssl_${PLATFORM}.zip lib include
 cd ..
diff --git a/pixman/chalet.yaml b/pixman/chalet.yaml
index fd626dbc..5870641a 100644
--- a/pixman/chalet.yaml
+++ b/pixman/chalet.yaml
@@ -22,8 +22,8 @@ targets:
       - mmx=disabled
       - sse2=disabled
     defines[platform:macos]:
-      - c_args=-mmacos-version-min=11.6
-      - cpp_args=-mmacos-version-min=11.6
+      - c_args=-mmacos-version-min=10.15
+      - cpp_args=-mmacos-version-min=10.15
 
     # FIXME: Remove when this is closed https://github.com/chalet-org/chalet/issues/425
     # defines[toolchain:{aarch64-linux-gnu-gcc,arm-linux-gnueabihf-gcc}]:
diff --git a/pixman/pixman.sh b/pixman/pixman.sh
index 597530a2..3c620e6d 100755
--- a/pixman/pixman.sh
+++ b/pixman/pixman.sh
@@ -3,12 +3,12 @@ cd "$(dirname "$0")"
 # pwd
 #
 # export
-# export MACOSX_DEPLOYMENT_TARGET=11.6
+# export MACOSX_DEPLOYMENT_TARGET=10.15
 unset MACOSX_DEPLOYMENT_TARGET
-export MIN_SUPPORTED_MACOSX_DEPLOYMENT_TARGET=11.6
-export LDFLAGS='-mmacosx-version-min=11.6'
-export CFLAGS='-stdlib=libc++ -mmacosx-version-min=11.6'
-export CXXFLAGS='-stdlib=libc++ -mmacosx-version-min=11.6'
+export MIN_SUPPORTED_MACOSX_DEPLOYMENT_TARGET=10.15
+export LDFLAGS='-mmacosx-version-min=10.15'
+export CFLAGS='-stdlib=libc++ -mmacosx-version-min=10.15'
+export CXXFLAGS='-stdlib=libc++ -mmacosx-version-min=10.15'
 
 git clone https://gitlab.freedesktop.org/pixman/pixman.git --depth 1
 cd pixman
diff --git a/poco/chalet.yaml b/poco/chalet.yaml
index 60eaaf83..8067d906 100644
--- a/poco/chalet.yaml
+++ b/poco/chalet.yaml
@@ -57,7 +57,7 @@ targets:
       # - CMAKE_INSTALL_FULL_LIBDIR=lib
     # defines[platform:macos]:
     # - CMAKE_OSX_ARCHITECTURES=x86_64;arm64
-    # - CMAKE_OSX_DEPLOYMENT_TARGET=11.6
+    # - CMAKE_OSX_DEPLOYMENT_TARGET=10.15
 
 distribution:
   poco:
diff --git a/pugixml/chalet.yaml b/pugixml/chalet.yaml
index 70e8e149..573fc5f8 100644
--- a/pugixml/chalet.yaml
+++ b/pugixml/chalet.yaml
@@ -27,7 +27,7 @@ targets:
 
     defines[platform:macos]:
       - CMAKE_OSX_ARCHITECTURES=x86_64;arm64
-      - CMAKE_OSX_DEPLOYMENT_TARGET=11.6
+      - CMAKE_OSX_DEPLOYMENT_TARGET=10.15
 
 distribution:
   pugixml:
diff --git a/readme.md b/readme.md
index 76ef5db0..69d71df8 100644
--- a/readme.md
+++ b/readme.md
@@ -32,7 +32,10 @@ You are welcome to jump in and help building and testing more libraries.<br>
 | opencv | ✓ | ✓ | ✓ | ✓ | ✓ | ofxOpenCv |
 | pixman | ✓ | ✓ | ✓ | ✓ | ✓ | ofxCairo |
 
-
+## Building
+The github workflow actions automatically build the libraries individually when changes are made. You can grab them from the releases.
+You can build the all libraries locally by running `./compile.sh`.
+Or proceed manually by `cd libFolder` and or `./lib.sh`.
 
 ## ofCore
 ![title](https://github.com/dimitre/ofLibs/actions/workflows/freetype.yml/badge.svg)
diff --git a/rtAudio/chalet.yaml b/rtAudio/chalet.yaml
index 4a7938da..ec80d3b0 100644
--- a/rtAudio/chalet.yaml
+++ b/rtAudio/chalet.yaml
@@ -25,7 +25,7 @@ targets:
       - CMAKE_INSTALL_LIBDIR=lib
     defines[platform:macos]:
       - CMAKE_OSX_ARCHITECTURES=x86_64;arm64
-      - CMAKE_OSX_DEPLOYMENT_TARGET=11.6
+      - CMAKE_OSX_DEPLOYMENT_TARGET=10.15
     defines[:web]:
       - RTAUDIO_API_ALSA=OFF
       - RTAUDIO_API_PULSE=OFF
diff --git a/tess2/chalet.yaml b/tess2/chalet.yaml
index 6c4dec88..6300136b 100644
--- a/tess2/chalet.yaml
+++ b/tess2/chalet.yaml
@@ -29,7 +29,7 @@ targets:
       - BUILD_SHARED_LIBS=OFF
     defines[platform:macos]:
       - CMAKE_OSX_ARCHITECTURES=x86_64;arm64
-      - CMAKE_OSX_DEPLOYMENT_TARGET=11.6
+      - CMAKE_OSX_DEPLOYMENT_TARGET=10.15
 
 distribution:
   tess2:
diff --git a/uriparser/chalet.yaml b/uriparser/chalet.yaml
index 72c82dca..06464bac 100644
--- a/uriparser/chalet.yaml
+++ b/uriparser/chalet.yaml
@@ -45,7 +45,7 @@ targets:
 
     defines[platform:macos]:
       - CMAKE_OSX_ARCHITECTURES=x86_64;arm64
-      - CMAKE_OSX_DEPLOYMENT_TARGET=11.6
+      - CMAKE_OSX_DEPLOYMENT_TARGET=10.15
 
 distribution:
   uriparser:
diff --git a/utfcpp/chalet.yaml b/utfcpp/chalet.yaml
index e891cfe6..a9e5dcb5 100644
--- a/utfcpp/chalet.yaml
+++ b/utfcpp/chalet.yaml
@@ -22,7 +22,7 @@ targets:
 
     defines[platform:macos]:
       - CMAKE_OSX_ARCHITECTURES=x86_64;arm64
-      - CMAKE_OSX_DEPLOYMENT_TARGET=11.6
+      - CMAKE_OSX_DEPLOYMENT_TARGET=10.15
 
 distribution:
   utfcpp:
diff --git a/yaml-cpp/chalet.yaml b/yaml-cpp/chalet.yaml
index 8260899d..1c619855 100644
--- a/yaml-cpp/chalet.yaml
+++ b/yaml-cpp/chalet.yaml
@@ -29,7 +29,7 @@ targets:
       #
     defines[platform:macos]:
       - CMAKE_OSX_ARCHITECTURES=x86_64;arm64
-      - CMAKE_OSX_DEPLOYMENT_TARGET=11.6
+      - CMAKE_OSX_DEPLOYMENT_TARGET=10.15
 
 distribution:
   yaml-cpp:
diff --git a/zlib-ng/chalet.yaml b/zlib-ng/chalet.yaml
index f784a57b..33b394bd 100644
--- a/zlib-ng/chalet.yaml
+++ b/zlib-ng/chalet.yaml
@@ -30,7 +30,7 @@ targets:
       - CMAKE_EXECUTABLE_SUFFIX=.js
     defines[platform:macos]:
       - CMAKE_OSX_ARCHITECTURES=arm64;x86_64
-      - CMAKE_OSX_DEPLOYMENT_TARGET=11.6
+      - CMAKE_OSX_DEPLOYMENT_TARGET=10.15
 
 distribution:
   zlib-ng:
diff --git a/zstd/chalet.yaml b/zstd/chalet.yaml
index 0551354f..71dc4359 100644
--- a/zstd/chalet.yaml
+++ b/zstd/chalet.yaml
@@ -30,7 +30,7 @@ targets:
       - CMAKE_MSVC_RUNTIME_LIBRARY=MultiThreaded
 
     defines[platform:macos]:
-      - CMAKE_OSX_DEPLOYMENT_TARGET=11.6
+      - CMAKE_OSX_DEPLOYMENT_TARGET=10.15
       - CMAKE_OSX_ARCHITECTURES=x86_64;arm64
 
 distribution: