diff --git a/.github/workflows/test-picco.yml b/.github/workflows/test-picco.yml
new file mode 100644
index 0000000..6898945
--- /dev/null
+++ b/.github/workflows/test-picco.yml
@@ -0,0 +1,28 @@
+name: Build and test the Docker container for Picco
+
+on:
+  push:
+    branches: [ master ]
+    paths:
+      - picco/*
+  pull_request:
+    branches: [ master ]
+    paths:
+      - picco/*
+
+jobs:
+    build:
+        name: Build container for Picco
+        runs-on: ubuntu-latest
+        steps:
+          - name: Check out the repo
+            uses: actions/checkout@v3
+          - uses: docker/setup-buildx-action@v2
+          - uses: docker/build-push-action@v4
+            with:
+              context: picco
+              tags: picco
+              load: true
+              cache-from: type=gha
+              cache-to: type=gha,mode=max
+              push: false
diff --git a/.github/workflows/test-scalemamba.yml b/.github/workflows/test-scalemamba.yml
new file mode 100644
index 0000000..b9e6f54
--- /dev/null
+++ b/.github/workflows/test-scalemamba.yml
@@ -0,0 +1,28 @@
+name: Build and test the Docker container for SCALE-Mamba
+
+on:
+  push:
+    branches: [ master ]
+    paths:
+      - scalemamba/*
+  pull_request:
+    branches: [ master ]
+    paths:
+      - scalemamba/*
+
+jobs:
+    build:
+        name: Build container for SCALE-Mamba
+        runs-on: ubuntu-latest
+        steps:
+          - name: Check out the repo
+            uses: actions/checkout@v3
+          - uses: docker/setup-buildx-action@v2
+          - uses: docker/build-push-action@v4
+            with:
+              context: scalemamba
+              tags: scalemamba
+              load: true
+              cache-from: type=gha
+              cache-to: type=gha,mode=max
+              push: false
diff --git a/.github/workflows/test-spdz.yml b/.github/workflows/test-spdz.yml
new file mode 100644
index 0000000..7e43df4
--- /dev/null
+++ b/.github/workflows/test-spdz.yml
@@ -0,0 +1,28 @@
+name: Build and test the Docker container for SPDZ-2
+
+on:
+  push:
+    branches: [ master ]
+    paths:
+      - spdz/*
+  pull_request:
+    branches: [ master ]
+    paths:
+      - spdz/*
+
+jobs:
+    build:
+        name: Build container for SPDZ-2
+        runs-on: ubuntu-latest
+        steps:
+          - name: Check out the repo
+            uses: actions/checkout@v3
+          - uses: docker/setup-buildx-action@v2
+          - uses: docker/build-push-action@v4
+            with:
+              context: spdz
+              tags: spdz
+              load: true
+              cache-from: type=gha
+              cache-to: type=gha,mode=max
+              push: false
diff --git a/picco/install_examples.sh b/picco/install_examples.sh
index 3ee293a..3ffbbb1 100644
--- a/picco/install_examples.sh
+++ b/picco/install_examples.sh
@@ -10,5 +10,5 @@ for DIR in mult3 innerprod xtabs; do
   ln -s /root/keys secure_server/keys 
   ln -s /root/picco/compute/smc-compute smc-compute
   picco $DIR.c smc_config $DIR utility_config
-  make
+  make -j
 done
diff --git a/scalemamba/install.sh b/scalemamba/install.sh
index 634a398..0db16f2 100644
--- a/scalemamba/install.sh
+++ b/scalemamba/install.sh
@@ -1,3 +1,5 @@
+#!/bin/bash
+
 set -ex
 
 
@@ -7,7 +9,7 @@ git clone https://github.com/KULeuven-COSIC/SCALE-MAMBA.git
 cd SCALE-MAMBA
 git checkout -b v1.14 c111516e3ebc1efd12a2bd47dd2122b160e13d1e
 cp /root/source/CONFIG.mine .
-make progs
+make progs -j
 
 # set up certificate authority
 touch ~/.rnd # see: https://github.com/openssl/openssl/issues/7754
diff --git a/spdz/install.sh b/spdz/install.sh
index ab741e4..e74cee5 100644
--- a/spdz/install.sh
+++ b/spdz/install.sh
@@ -6,13 +6,11 @@ set -ex
 git clone https://github.com/bristolcrypto/SPDZ-2 
 cd SPDZ-2
 git checkout v0.0.3
-echo USE_NTL = 1 >> CONFIG.mine
-echo MOD = -DMAX_MOD_SZ=6 >> CONFIG.mine
-echo ARCH = -march=native >> CONFIG.mine
+{ echo USE_NTL = 1; echo MOD = -DMAX_MOD_SZ=6; echo ARCH = -march=native; } >> CONFIG.mine
 sed -i s/-Werror//g CONFIG # needed because recent versions of gcc cannot compile SPDZ w/o warnings.
 sed -i s/python/python2/g compile.py # The command is now called "python2" instead of "python".
 
-make -j8
+make -j
 mkdir Player-Data