diff --git a/.github/copilot-instructions.md b/.github/copilot-instructions.md
new file mode 100644
index 0000000..2a9084e
--- /dev/null
+++ b/.github/copilot-instructions.md
@@ -0,0 +1,3 @@
+# C2
+C2 is a compiler for a new language.
+See the README.md for information about this project.
diff --git a/.github/skills/implement/SKILL.md b/.github/skills/implement/SKILL.md
new file mode 100644
index 0000000..4ec1c4d
--- /dev/null
+++ b/.github/skills/implement/SKILL.md
@@ -0,0 +1,6 @@
+---
+name: implement
+description: 'Implement all @copilot annotations'
+---
+
+Find and implement all `@copilot` comments in the codebase. Only modify code related to those annotations. Skip e2e tests unless asked.
\ No newline at end of file
diff --git a/Makefile b/Makefile
index ef0bd85..88d71fb 100644
--- a/Makefile
+++ b/Makefile
@@ -1,19 +1,8 @@
-.PHONY: all clean
-
-SRC := main.c
-BINDIR := bin
-OBJ := $(SRC:%.c=$(BINDIR)/%.o)
+.PHONY: all test clean
 
 all: c2
 
-clean:
-	rm -rv bin
+c2: v0/bin/c2
+	# @copilot copy the compiler
 
-c2: $(OBJ)
-	gcc -o $@ $<
-
-$(BINDIR)/%.o: %.c
-	gcc -c -o $@ $<
-
-$(BINDIR):
-	mkdir -p $(BINDIR)
+include v0/include.mk
\ No newline at end of file
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..af4d241
--- /dev/null
+++ b/README.md
@@ -0,0 +1,17 @@
+# C2
+C2 is a programming language based on C.
+It adds modern high-level features such as metaprogramming, generics, etc,
+but compiles down to C89.
+
+## Building
+To build the c2–compiler, simply run `make` or `make all`.
+This will build the compiler and run the tests.
+
+In order to only build the compiler, run `make c2`.
+In order to run the tests, run `make test`.
+
+## Versioning
+The current version is v0. Its source code lives in the `v0` directory.
+
+## Languages Specifications
+See the specs directory for information on the actual language syntax.
\ No newline at end of file
diff --git a/v0/include.mk b/v0/include.mk
new file mode 100644
index 0000000..04f102e
--- /dev/null
+++ b/v0/include.mk
@@ -0,0 +1,14 @@
+V0_SRC := # @copilot include everything in src
+V0_TEST := # @copilot include everything in test
+
+V0_SRC_OBJ := # @copilot implement. exampleL v0/src/main.c -> v0/bin/src/main.o
+V0_TEST_OBJ := # @copilot
+
+v0/bin/c2: $(V0_SRC OBJ)
+	# @copilot implement
+
+v0/bin/test: $(V0_SRC_TEST)
+	# @copilot implement
+
+# @copilot add target that builds each .c file into a .o file.
+# Ensure header dependencies are tracked correctly.
diff --git a/v0/tests/test.c b/v0/tests/test.c
new file mode 100644
index 0000000..71053b3
--- /dev/null
+++ b/v0/tests/test.c
@@ -0,0 +1,24 @@
+#include "test.h"
+
+// @copilot implement fail()
+
+static int s_totalTests;
+static int s_greenTests;
+
+static Test[] = {
+	// @copilot add all tests
+};
+
+int main(int argc, char** argv) {
+	/*
+	@copilot loop over each test.
+	If the test is good, count the test as part of green test.
+	Otherwise, go to the next one.
+
+	The start of the test must log the name of the test method.
+	After the test, log either "[OK]" or "[FAIL]".
+
+	At the very end, log the name of each failed test and the total
+	number of green tests compared to the total.
+	*/
+}
\ No newline at end of file
diff --git a/v0/tests/test.h b/v0/tests/test.h
new file mode 100644
index 0000000..095927a
--- /dev/null
+++ b/v0/tests/test.h
@@ -0,0 +1,16 @@
+/**
+ * Contains test assertions routines.
+ */
+#ifndef TEST_H
+#define TEST_H
+
+// @copilot fix the syntax. This is a typedef for any function taking a void and returning void.
+typedef Test void(void);
+
+/**
+ * Fails a test.
+ * @param msg The message to print to the console.
+ */
+void fail(const char* msg);
+
+#endif