Add travis support

.travis.yml

@@ -0,0 +1,23 @@
+dist: bionic
+language: generic
+env:
+  global:
+  - LANG=C
+  - LC_ALL=C
+before_cache:
+- mountpoint -q $TRAVIS_BUILD_DIR/tmp/mnt && sudo umount -R $TRAVIS_BUILD_DIR/tmp/mnt
+- sudo find $TRAVIS_BUILD_DIR/tmp/ -name '*.img' -delete
+cache:
+  apt: true
+  directories:
+  - tmp/
+before_script:
+- sudo apt-get -y update
+- sudo apt-get -y install qemu-user-static binfmt-support qemu
+- sudo update-binfmts --display
+- unset GOROOT
+script:
+- sudo ./scripts/create_sibling.sh -n pwnagotchi -o pwnagotchi.img -s 4
+- zip -s 2g pwnagotchi.zip pwnagotchi.img
+
+# TODO: deploy!