diff --git a/hydra/machines-for-berlin.scm b/hydra/machines-for-berlin.scm
index 91df46a..d4f14b2 100644
--- a/hydra/machines-for-berlin.scm
+++ b/hydra/machines-for-berlin.scm
@@ -1,5 +1,5 @@
 ;; Install this file as /etc/guix/machines.scm on berlin.guixsd.org
-(use-modules (ice-9 match))
+(use-modules (ice-9 match) (srfi srfi-1))
 
 ;; These are all hosted at the MDC in rack A4.  They are connected to
 ;; a dedicated VLAN and can only be accessed from berlin.guixsd.org.
@@ -113,6 +113,20 @@
    (speed .9)
    (parallel-builds 1)))            ;limit to favor the "real" ARMv7 machines
 
+(define (x86_64->qemu-armhf machine)
+  (build-machine
+   (inherit machine)
+   (system "armhf-linux")
+   (speed .9)
+   (parallel-builds 1)))
+
+(define (x86_64->qemu-aarch64 machine)
+  (build-machine
+   (inherit machine)
+   (system "aarch64-linux")
+   (speed .9)
+   (parallel-builds 1)))
+
 (define overdrive
   ;; The SoftIron OverDrive 1000 donated by ARM:
   ;; <https://softiron.com/development-tools/overdrive-1000/>.
@@ -150,4 +164,7 @@
 (let ((x86_64 (map template-x86_64 hosts)))
   (append overdrive (map aarch64->armhf overdrive)
           armv7
-          x86_64 (map x86_64->i686 x86_64)))
+          x86_64 (map x86_64->i686 x86_64)
+          (map x86_64->qemu-aarch64 (take (drop x86_64 5) 5))
+          (map x86_64->qemu-armhf (take x86_64 5))))
+