diff --git a/Makefile b/Makefile
index 53ffaf6..f2f1763 100644
--- a/Makefile
+++ b/Makefile
@@ -1,3 +1,3 @@
 all:
 	@rm -f src/*.cov
-	@julia --project --threads 6 make.jl
+	@julia --project --color=yes --threads 6 make.jl
diff --git a/replication/construction_diagrams/construction_diagrams.jl b/replication/construction_diagrams/construction_diagrams.jl
index 283dfd0..e2f9e13 100644
--- a/replication/construction_diagrams/construction_diagrams.jl
+++ b/replication/construction_diagrams/construction_diagrams.jl
@@ -1,7 +1,6 @@
 using MondrianForests
 using PyPlot
 using Random
-using Revise
 
 rcParams = PyPlot.PyDict(PyPlot.matplotlib."rcParams")
 rcParams["text.usetex"] = true
diff --git a/replication/piet_diagram/piet_diagram.jl b/replication/piet_diagram/piet_diagram.jl
index b6451b9..2815304 100644
--- a/replication/piet_diagram/piet_diagram.jl
+++ b/replication/piet_diagram/piet_diagram.jl
@@ -1,7 +1,6 @@
 using MondrianForests
 using PyPlot
 using Random
-using Revise
 
 rcParams = PyPlot.PyDict(PyPlot.matplotlib."rcParams")
 rcParams["text.usetex"] = true
diff --git a/replication/theorem_diagrams/theorem_diagrams.jl b/replication/theorem_diagrams/theorem_diagrams.jl
index 4898bb4..784f7b7 100644
--- a/replication/theorem_diagrams/theorem_diagrams.jl
+++ b/replication/theorem_diagrams/theorem_diagrams.jl
@@ -1,7 +1,6 @@
 using MondrianForests
 using PyPlot
 using Random
-using Revise
 
 rcParams = PyPlot.PyDict(PyPlot.matplotlib."rcParams")
 rcParams["text.usetex"] = true
diff --git a/replication/weather/weather_cv.jl b/replication/weather/weather_cv.jl
index 0f8afdd..ed75453 100644
--- a/replication/weather/weather_cv.jl
+++ b/replication/weather/weather_cv.jl
@@ -1,4 +1,3 @@
-using Revise
 using CSV
 using DataFrames
 using PyPlot
diff --git a/shell.nix b/shell.nix
new file mode 100644
index 0000000..52ce8e7
--- /dev/null
+++ b/shell.nix
@@ -0,0 +1,15 @@
+let
+pkgs = import <nixpkgs> { };
+in pkgs.mkShell {
+    buildInputs = with pkgs; [
+        cacert
+        julia
+        python3Packages.matplotlib
+        texlive.combined.scheme-full
+        git
+    ];
+    shellHook = ''
+        # run this to link Julia PyCall package to nixpkgs python3
+        #julia --color=yes -e 'using Pkg; ENV["PYTHON"]="${pkgs.python3}/bin/python3"; Pkg.build("PyCall")'
+    '';
+}