diff --git a/Maekfile.js b/Maekfile.js
index 7c95a09..725f162 100644
--- a/Maekfile.js
+++ b/Maekfile.js
@@ -153,7 +153,7 @@ const schedule_names = [
 //extra flags for finding Eigen:
 const interpolate_values_CPPFlags = [...maek.options.CPPFlags];
 if (maek.OS === "macos") {
-	interpolate_values_CPPFlags.push('-I/usr/local/include/eigen3');
+	interpolate_values_CPPFlags.push('-I/opt/homebrew/include/eigen3', '-Wno-unused-but-set-variable');
 } else if (maek.OS === "windows") {
 	interpolate_values_CPPFlags.push('/Ieigen', '/D_SILENCE_CXX17_RESULT_OF_DEPRECATION_WARNING',
 		`/wd4459` //local definition hides global
diff --git a/README.md b/README.md
index 1fd9455..09b266e 100644
--- a/README.md
+++ b/README.md
@@ -21,10 +21,10 @@ Building autoknit is handled with the single-file build tool [maek](https://gith
 ### <a name="mac"></a>MacOS setup
 ```
 #install eigen library and nodejs (used for build script and to post-process scheduled output):
-brew eigen node
+brew install eigen node
 
 #extract nest-libs package as a sibling of autoknit folder:
-curl 'https://github.com/15-466/nest-libs/releases/download/v0.13/nest-libs-macos-v0.13.tar.gz'
+curl 'https://github.com/15-466/nest-libs/releases/download/v0.13/nest-libs-macos-v0.13.tar.gz' -L -O
 tar xvfz nest-libs-macos-v0.13.tar.gz
 
 #clone repository:
@@ -41,7 +41,7 @@ git submodule update
 sudo apt-get install libeigen3-dev nodejs
 
 #extract nest-libs package as a sibling of autoknit folder:
-curl 'https://github.com/15-466/nest-libs/releases/download/v0.13/nest-libs-linux-v0.13.tar.gz'
+curl 'https://github.com/15-466/nest-libs/releases/download/v0.13/nest-libs-linux-v0.13.tar.gz' -L -O
 tar xvfz nest-libs-macos-v0.13.tar.gz
 
 #clone repository:
@@ -81,6 +81,7 @@ node Maekfile.js
 Command line flags for maek include:
 - `-j8` run with 8 compilation jobs in parallel. Adjust the number to suit your machine. Defaults to number of cores + 1.
 - `-q` quit on first error
+- Specifically, `node Maekfile.js -j1 -q` is useful when you want to work on one error at a time during development!
 
 Note that maek is a small build system, entirely contained in [Maekfile.js](Maekfile.js). You can read the file to see more about command line options or to see how the build is structured.
 
diff --git a/ak-embed_constraints.cpp b/ak-embed_constraints.cpp
index 2aab5e4..13bca01 100644
--- a/ak-embed_constraints.cpp
+++ b/ak-embed_constraints.cpp
@@ -466,10 +466,13 @@ void ak::embed_constraints(
 		}
 
 		//clear adj + re-create from min_dis:
+
+		/* //DEBUG:
 		uint32_t old_adj = 0;
 		for (auto const &a : adj) {
 			old_adj += a.size();
 		}
+		*/
 
 		adj.assign(verts.size(), std::vector< std::pair< uint32_t, float > >());
 
@@ -479,12 +482,14 @@ void ak::embed_constraints(
 			adj[xyd.first.y].emplace_back(xyd.first.x, xyd.second);
 		}
 
+		/* //DEBUG:
 		uint32_t new_adj = 0;
 		for (auto const &a : adj) {
 			new_adj += a.size();
 		}
+		*/
 
-		//std::cout << "Went from " << old_adj << " to " << new_adj << " by unfolding triangles." << std::endl;
+		//std::cout << "Went from " << old_adj << " to " << new_adj << " by unfolding triangles." << std::endl; //DEBUG
 
 		//for consistency:
 		for (auto &a : adj) {
diff --git a/test_plan_transfers.cpp b/test_plan_transfers.cpp
index d75f0cc..04c53f7 100644
--- a/test_plan_transfers.cpp
+++ b/test_plan_transfers.cpp
@@ -74,12 +74,12 @@ bool simulate_transfers(
 		//stitches are oriented ccw:
 
 		//count the various sorts of edges:
-		uint32_t back_left = 0;
+		[[maybe_unused]] uint32_t back_left = 0;
 		uint32_t back_right = 0;
 		uint32_t back_front = 0;
 		uint32_t front_left = 0;
 		[[maybe_unused]] uint32_t front_right = 0;
-		[[maybe_unused]] uint32_t front_back = 0;
+		uint32_t front_back = 0;
 
 		auto is_front = [&ccw](uint32_t i) {
 			if (ccw[i].bed == BedNeedle::Front) {