diff --git a/README.md b/README.md
index 7e25576..b052056 100644
--- a/README.md
+++ b/README.md
@@ -1,3 +1,10 @@
-Playing around with SNES assembly stuff
+# SNES Assembly
 
-https://wiki.superfamicom.org/ <- a resource
+This repo is a playground for messing around with SNES assembly.
+
+It uses the [wla-dx](https://github.com/vhelin/wla-dx) assembler toolchain.
+
+
+# Resources
+
+* https://wiki.superfamicom.org/
diff --git a/justfile b/justfile
new file mode 100644
index 0000000..aa41812
--- /dev/null
+++ b/justfile
@@ -0,0 +1,7 @@
+default:
+    just --list
+
+greenspace_smc:
+    wla-65816 -o greenspace.obj greenspace.asm
+    wlalink greenspace.link greenspace.smc
+