diff --git a/py-coitrees/Cargo.toml b/py-coitrees/Cargo.toml
index c134654..210d4b2 100644
--- a/py-coitrees/Cargo.toml
+++ b/py-coitrees/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "py-coitrees"
-version = "0.1.0"
+version = "0.3.0"
 edition = "2021"
 
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
@@ -9,4 +9,5 @@ name = "coitrees"
 crate-type = ["cdylib"]
 
 [dependencies]
-pyo3 = { version = "0.20.0", features = ["extension-module"] }
+pyo3 = { version = "0.20.0", features = ["abi3-py38", "extension-module"] }
+coitrees = { path = "../" }
diff --git a/py-coitrees/Makefile b/py-coitrees/Makefile
new file mode 100644
index 0000000..13f6573
--- /dev/null
+++ b/py-coitrees/Makefile
@@ -0,0 +1,70 @@
+SHELL := /bin/bash
+
+ts := $(shell date -u +"%Y-%m-%dT%H:%M:%SZ")
+
+.PHONY: help
+help: ## This help message
+	@echo -e "$$(grep -hE '^\S+:.*##' $(MAKEFILE_LIST) | sed -e 's/:.*##\s*/:/' -e 's/^\(.\+\):\(.*\)/\\x1b[36m\1\\x1b[m:\2/' | column -c2 -t -s :)"
+
+.PHONY: build
+build: nightly dev-packages ## Builds Rust code and rscannls Python modules
+	maturin build
+
+.PHONY: build-release
+build-release: nightly dev-packages ## Build rscannls module in release mode
+	maturin build --release
+
+.PHONY: nightly
+nightly: ## Set rust compiler to nightly version
+	rustup override set nightly
+
+.PHONY: install
+install: nightly dev-packages ## Install scannls module into current virtualenv
+	maturin develop --release
+
+.PHONY: publish
+publish: ## Publish crate on Pypi
+	poetry run maturin publish
+
+.PHONY: clean
+clean: ## Clean up build artifacts
+	cargo clean
+	find .  \( -type f -name "*.py[co]" -o -type d -name "__pycache__" \) -delete && echo "Removed pycs and __pycache__"
+	rm -f data/*log
+
+.PHONY: dev-packages
+dev-packages: ## Install Python development packages for project
+	poetry install
+
+.PHONY: cargo-test
+cargo-test: ## Run cargo tests only
+	cargo test 
+
+.PHONY: test
+test: cargo-test dev-packages install quicktest ## Intall rscannls module and run tests
+
+.PHONY: quicktest
+quicktest: ## Run tests on already installed hyperjson module
+	poetry run pytest tests
+
+.PHONY: bench
+bench: ## Run benchmarks
+	poetry run pytest benchmarks
+
+.PHONY: bench-compare
+bench-compare: nightly dev-packages install ## Run benchmarks and compare results with other JSON encoders
+	poetry run pytest benchmarks --compare
+
+.PHONY: build-profile
+build-profile: ## Builds binary for profiling
+	cd profiling && poetry run cargo build --release
+
+# Setup instructions here:
+# https://gist.github.com/dlaehnemann/df31787c41bd50c0fe223df07cf6eb89
+.PHONY: profile
+profile: OUTPUT_PATH = measurements/flame-$(ts).svg
+profile: FLAGS=booleans --iterations 10000
+profile: nightly build-profile ## Run perf-based profiling (only works on Linux!)
+	perf record --call-graph dwarf,16384 -e cpu-clock -F 997 target/release/profiling $(FLAGS)
+	time perf script | stackcollapse-perf.pl | c++filt | flamegraph.pl > $(OUTPUT_PATH)
+	@echo "$(OUTPUT_PATH)"