diff --git a/.github/workflows/BuildSamplesMacOS.yml b/.github/workflows/BuildSamplesMacOS.yml
new file mode 100644
index 00000000..7640a8ea
--- /dev/null
+++ b/.github/workflows/BuildSamplesMacOS.yml
@@ -0,0 +1,18 @@
+name: BuildSamplesMacOS
+
+on:
+  [push, pull_request]
+
+jobs:
+  macos_build_tests:
+    name: Build Samples (MacOS)
+    runs-on: macos-latest
+
+    steps:
+    - uses: actions/checkout@v2
+    - name: Install Qt
+      uses: jurplel/install-qt-action@v2
+    - name: Build Samples
+      run: |
+        qmake apps/sample/sample.pro
+        make -j4
diff --git a/.github/workflows/BuildSamplesUbuntu.yml b/.github/workflows/BuildSamplesUbuntu.yml
new file mode 100644
index 00000000..9601bba4
--- /dev/null
+++ b/.github/workflows/BuildSamplesUbuntu.yml
@@ -0,0 +1,18 @@
+name: BuildSamplesUbuntu
+
+on:
+  [push, pull_request]
+
+jobs:
+  ubuntu_build_tests:
+    name: Build Samples (Ubuntu)
+    runs-on: ubuntu-latest #in order to deploy, need to use oldest supported version
+
+    steps:
+    - uses: actions/checkout@v2
+    - name: Install Qt
+      uses: jurplel/install-qt-action@v2
+    - name: Build Samples
+      run: |
+        qmake apps/sample/sample.pro
+        make -j4
diff --git a/.github/workflows/BuildSamplesWindows.yml b/.github/workflows/BuildSamplesWindows.yml
new file mode 100644
index 00000000..999008ea
--- /dev/null
+++ b/.github/workflows/BuildSamplesWindows.yml
@@ -0,0 +1,29 @@
+name: BuildSamplesWindows
+
+on: [push, pull_request]
+
+jobs:
+  windows_build_tests:
+    name: Build Samples (Windows)
+    runs-on: windows-latest
+
+    steps:
+    - uses: actions/checkout@v2
+    - name: Downlaod Jom
+      run: |
+        Invoke-WebRequest -Uri "http://download.qt.io/official_releases/jom/jom_1_1_3.zip" -OutFile "jom_1_1_3.zip"
+        New-Item -Name "jom" -ItemType "directory"
+        Expand-Archive -Path jom_1_1_3.zip -DestinationPath .\jom
+        echo "::add-path::$(Get-Location)\jom"
+    - name: Setup env variables
+      id: envs
+      run: |
+        echo '::set-env name=VCINSTALLDIR::C:\Program Files (x86)\Microsoft Visual Studio\2019\Enterprise\VC'
+    - name: Setup MSVC
+      uses: ilammy/msvc-dev-cmd@v1
+    - name: Install Qt
+      uses: jurplel/install-qt-action@v2
+    - name: Build Samples
+      run: |
+        qmake apps/sample/sample.pro
+        jom -j4
diff --git a/README.md b/README.md
index 3bb80d94..f9065e7e 100644
--- a/README.md
+++ b/README.md
@@ -1,7 +1,8 @@
 The **_Visualization and Computer Graphics Library_** (VCGlib for short) is a open source, portable, C++, templated, no dependency, library for manipulation, processing, cleaning, simplifying triangle meshes.
 
-[![Build Status](https://travis-ci.org/cnr-isti-vclab/vcglib.svg?branch=devel)](https://travis-ci.org/cnr-isti-vclab/vcglib)
-[![Build status](https://ci.appveyor.com/api/projects/status/7k27s4k4xjmeowoe/branch/devel?svg=true)](https://ci.appveyor.com/project/cignoni/vcglib/branch/devel)
+![BuildSamplesUbuntu](https://github.com/cnr-isti-vclab/vcglib/workflows/BuildSamplesUbuntu/badge.svg)
+![BuildSamplesMacOS](https://github.com/cnr-isti-vclab/vcglib/workflows/BuildSamplesMacOS/badge.svg)
+![BuildSamplesWindows](https://github.com/cnr-isti-vclab/vcglib/workflows/BuildSamplesWindows/badge.svg)
 
 The library, composed by more than 100k lines of code, is released under the GPL license, and it is the base of most of the software tools of the [Visual Computing Lab](http://vcg.isti.cnr.it) of the Italian National Research Council Institute ISTI, like MeshLab, metro and many others.
 
diff --git a/apps/sample/colorspace/colorspace.pro b/apps/sample/colorspace/colorspace.pro
index cb5f1612..76787855 100644
--- a/apps/sample/colorspace/colorspace.pro
+++ b/apps/sample/colorspace/colorspace.pro
@@ -1,7 +1,3 @@
+include(../common.pri)
 TARGET = colorspace
-LIBPATH += 
-DEPENDPATH += . 
-INCLUDEPATH += . ../../..
-CONFIG += console stl 
-TEMPLATE = app
-SOURCES += colorspace.cpp
\ No newline at end of file
+SOURCES += colorspace.cpp
diff --git a/apps/sample/polygonmesh_dual/polygonmesh_dual.pro b/apps/sample/polygonmesh_dual/polygonmesh_dual.pro
index e92bf0b3..169072de 100644
--- a/apps/sample/polygonmesh_dual/polygonmesh_dual.pro
+++ b/apps/sample/polygonmesh_dual/polygonmesh_dual.pro
@@ -1,7 +1,3 @@
-\macx: QMAKE_MACOSX_DEPLOYMENT_TARGET = 10.9
-QMAKE_MAC_SDK = macosx10.9
-CONFIG += c++11
-
 include(../common.pri)
 TARGET = polygonmesh_base
 SOURCES += polygonmesh_dual.cpp ../../../wrap/ply/plylib.cpp
diff --git a/apps/sample/polygonmesh_optimize/polygonmesh_optimize.pro b/apps/sample/polygonmesh_optimize/polygonmesh_optimize.pro
index bb127a8c..1bbfbcf3 100644
--- a/apps/sample/polygonmesh_optimize/polygonmesh_optimize.pro
+++ b/apps/sample/polygonmesh_optimize/polygonmesh_optimize.pro
@@ -1,7 +1,3 @@
-\macx: QMAKE_MACOSX_DEPLOYMENT_TARGET = 10.9
-QMAKE_MAC_SDK = macosx10.9
-CONFIG += c++11
-
 include(../common.pri)
 TARGET = polygonmesh_base
 SOURCES += polygonmesh_optimize.cpp ../../../wrap/ply/plylib.cpp
diff --git a/apps/sample/sample_poly.pro b/apps/sample/sample_poly.pro
deleted file mode 100644
index 249d29b4..00000000
--- a/apps/sample/sample_poly.pro
+++ /dev/null
@@ -1,10 +0,0 @@
-
-TEMPLATE      = subdirs
-SUBDIRS       = polygonmesh_base \ 
-                polygonmesh_dual \ 
-                polygonmesh_optimize \ 
-#                polygonmesh_quadsimpl \ 
-                polygonmesh_smooth \ 
-                polygonmesh_zonohedra 
-
-