diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..1377554
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+*.swp
diff --git a/README.md b/README.md
index 8eb468e..f5ed450 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,19 @@
 # greenctld
 Controller software for Green Heron.
 
+# Install
+Install thusly:
+
+```
+sudo apt install python3-virtualenv python3-pip
+git clone https://spacecruft.org/spacecruft/greenctld
+cd greenctld
+virtualenv -p python3 env
+source env/bin/activate
+pip install --upgrade pip
+pip install -r requirements.txt
+```
+
 
 # Upstream
 Port from Python2 to Python3 of mct's greenctld.