diff --git a/.drone.yml b/.drone.yml
index 1bfd77e..7f76c42 100644
--- a/.drone.yml
+++ b/.drone.yml
@@ -2,12 +2,54 @@ kind: pipeline
 type: docker
 name: default
 
+clone:
+  depth: 3
+
 steps:
-  - name: build
+  - name: restore-cache-with-filesystem
+    image: meltwater/drone-cache
+    pull: true
+    settings:
+      backend: "filesystem"
+      restore: true
+      cache_key: "volume"
+      archive_format: "gzip"
+      # filesystem_cache_root: "/tmp/cache"
+      mount:
+        - 'vendor'
+    volumes:
+    - name: cache
+      path: /tmp/cache
+
+  - name: build-release-arch
     image: archlinux_build
     pull: if-not-exists
     commands:
+    - pacman -S pybind11 openblas fftw pulseaudio
+    - git submodule update --init --recursive
     - cmake .
-    - make -j
+    # More than two makes ascee2 irresponsive for now
+    - make -j2
+
+  - name: rebuild-cache-with-filesystem
+    image: meltwater/drone-cache
+    pull: true
+    settings:
+      backend: "filesystem"
+      rebuild: true
+      cache_key: "volume"
+      archive_format: "gzip"
+      # filesystem_cache_root: "/tmp/cache"
+      mount:
+        - 'vendor'
+    volumes:
+    - name: cache
+      path: /tmp/cache
+
+volumes:
+  - name: cache
+    host:
+      path: /var/lib/cache
+---
 
 
diff --git a/README.md b/README.md
index 98bfcc0..6125789 100644
--- a/README.md
+++ b/README.md
@@ -1,5 +1,7 @@
 # Library for Acoustic Signal Processing
 
+[![Build Status](https://drone.ascee.nl/api/badges/ASCEE/lasp/status.svg)](https://drone.ascee.nl/ASCEE/lasp)
+
 Welcome to LASP: Library for Acoustic Signal Processing. LASP is a C++ library
 with a Python interface which is supposed to process (multi-) microphone
 acoustic data in real time on a PC and output results.
diff --git a/requirements.txt b/requirements.txt
new file mode 100644
index 0000000..e985c14
--- /dev/null
+++ b/requirements.txt
@@ -0,0 +1,3 @@
+dataclasses_json
+h5py
+