diff --git a/flake.nix b/flake.nix
index 13bafa8..ebb44c3 100644
--- a/flake.nix
+++ b/flake.nix
@@ -58,7 +58,6 @@
         dontConfigure = true;
 
         buildPhase = ''
-          set -x
           for source in ${src}/*.c; do
               if [ -e $source ]; then
                   ${gcc} ${cflags} ${include_dirs} -c $source
@@ -253,199 +252,6 @@
           ];
         };
 
-        /*
-      packages."x86_64-linux"."animation-test" =
-        let
-          pkgs = import nixpkgs { system = "x86_64-linux"; };
-          lib = pkgs.lib;
-        in pkgs.stdenv.mkDerivation rec {
-          name = "animation-test";
-          src = ./.;
-
-          buildInputs = [
-            (packages."x86_64-linux"."animation" { inherit gcc; })
-          ];
-
-          INCLUDE_DIRS = lib.concatStringsSep " " (map (dir: "-I${dir}") buildInputs);
-          OBJECT_FILES = lib.concatStringsSep " " (map (dir: "${dir}/*.o") buildInputs);
-          gcc = "${pkgs.gcc}/bin/gcc";
-
-          buildPhase = ''
-            ${gcc} ${INCLUDE_DIRS} -o main.o -c ${src}/animation/main.c
-            ${gcc} ${INCLUDE_DIRS} -o animation-test main.o ${OBJECT_FILES}
-            '';
-          installPhase = ''
-            mkdir $out
-            cp animation-test $out
-            '';
-        };
-
-      packages."x86_64-linux"."flame" =
-        { mcu, chip_select, f_cpu }:
-        let
-          pkgs = import nixpkgs { system = "x86_64-linux"; };
-          lib = pkgs.lib;
-          avr = pkgs.pkgsCross.avr.buildPackages;
-        in pkgs.stdenv.mkDerivation rec {
-          name = "flame";
-          src = ./.;
-
-          buildInputs = [
-            (packages."x86_64-linux"."dio" { inherit mcu chip_select f_cpu; })
-            (packages."x86_64-linux"."sk9822" { inherit mcu chip_select f_cpu; })
-            (packages."x86_64-linux"."rng" { inherit mcu chip_select f_cpu; })
-            (packages."x86_64-linux"."animation" { inherit mcu chip_select f_cpu;
-                                                   gcc = "${avr.gcc}/bin/avr-gcc"; })
-          ];
-
-          CFLAGS = mcu_cflags { inherit mcu chip_select f_cpu; };
-          INCLUDE_DIRS = pkgs.lib.concatStringsSep " " (map (dir: "-I${dir}") buildInputs);
-          OBJECT_FILES = pkgs.lib.concatStringsSep " " (map (dir: "${dir}/*.o") buildInputs);
-
-          buildPhase = ''
-            ${avr.gcc}/bin/avr-gcc ${CFLAGS} ${INCLUDE_DIRS} -o main.o -c ${src}/flame/main.c
-            ${avr.gcc}/bin/avr-gcc ${CFLAGS} ${INCLUDE_DIRS} -o flame.elf main.o ${OBJECT_FILES}
-            $OBJCOPY -O ihex flame.elf flame.hex
-            '';
-          installPhase = ''
-            mkdir $out
-            cp flame.elf flame.hex $out
-            '';
-        };
-
-      packages."x86_64-linux"."prime-tx" =
-        { mcu, chip_select, f_cpu }:
-        let
-          pkgs = import nixpkgs { system = "x86_64-linux"; };
-          lib = pkgs.lib;
-          avr = pkgs.pkgsCross.avr.buildPackages;
-        in pkgs.stdenv.mkDerivation rec {
-          name = "prime-tx";
-          src = ./.;
-
-          buildInputs = [
-            (packages."x86_64-linux"."dio" { inherit mcu chip_select f_cpu; })
-            (packages."x86_64-linux"."spi" { inherit mcu chip_select f_cpu; })
-            (packages."x86_64-linux"."shift-register" { inherit mcu chip_select f_cpu; })
-            (packages."x86_64-linux"."rfm" { inherit mcu chip_select f_cpu; })
-            (packages."x86_64-linux"."display" { inherit mcu chip_select f_cpu; })
-          ];
-
-          CFLAGS = mcu_cflags { inherit mcu chip_select f_cpu; };
-          INCLUDE_DIRS = pkgs.lib.concatStringsSep " " (map (dir: "-I${dir}") buildInputs);
-          OBJECT_FILES = pkgs.lib.concatStringsSep " " (map (dir: "${dir}/*.o") buildInputs);
-
-
-          buildPhase = ''
-            ${avr.gcc}/bin/avr-gcc ${CFLAGS} ${INCLUDE_DIRS} -o main.o -c ${src}/prime-tx/main.c
-            ${avr.gcc}/bin/avr-gcc ${CFLAGS} -o prime-tx.elf main.o ${OBJECT_FILES}
-            $OBJCOPY -O ihex prime-tx.elf prime-tx.hex
-            '';
-
-          installPhase = ''
-            mkdir $out
-            cp prime-tx.elf prime-tx.hex $out
-            '';
-        };
-
-      packages."x86_64-linux"."radio-rx" =
-        { mcu, chip_select, f_cpu }:
-        let
-          pkgs = import nixpkgs { system = "x86_64-linux"; };
-          lib = pkgs.lib;
-          avr = pkgs.pkgsCross.avr.buildPackages;
-        in pkgs.stdenv.mkDerivation rec {
-          name = "radio-rx";
-          src = ./.;
-
-          buildInputs = [
-            (packages."x86_64-linux"."dio" { inherit mcu chip_select f_cpu; })
-            (packages."x86_64-linux"."spi" { inherit mcu chip_select f_cpu; })
-            (packages."x86_64-linux"."shift-register" { inherit mcu chip_select f_cpu; })
-            (packages."x86_64-linux"."rfm" { inherit mcu chip_select f_cpu; })
-            (packages."x86_64-linux"."display" { inherit mcu chip_select f_cpu; })
-          ];
-
-          CFLAGS = mcu_cflags { inherit mcu chip_select f_cpu; };
-          INCLUDE_DIRS = pkgs.lib.concatStringsSep " " (map (dir: "-I${dir}") buildInputs);
-          OBJECT_FILES = pkgs.lib.concatStringsSep " " (map (dir: "${dir}/*.o") buildInputs);
-
-          buildPhase = ''
-            ${avr.gcc}/bin/avr-gcc ${CFLAGS} ${INCLUDE_DIRS} -o main.o -c ${src}/radio-rx/main.c
-            ${avr.gcc}/bin/avr-gcc ${CFLAGS} -o radio-rx.elf main.o ${OBJECT_FILES}
-            $OBJCOPY -O ihex radio-rx.elf radio-rx.hex
-            '';
-          installPhase = ''
-            mkdir $out
-            cp radio-rx.elf radio-rx.hex $out
-            '';
-        };
-
-      packages."x86_64-linux"."interrupts-standalone" = (packages."x86_64-linux"."interrupts" atmega32u4);
-
-      packages."x86_64-linux"."interrupts" =
-        { mcu, chip_select, f_cpu }:
-        let
-          pkgs = import nixpkgs { system = "x86_64-linux"; };
-          lib = pkgs.lib;
-          avr = pkgs.pkgsCross.avr.buildPackages;
-        in pkgs.stdenv.mkDerivation rec {
-          name = "interrupts";
-          src = ./.;
-
-          buildInputs = [
-            (packages."x86_64-linux"."dio" { inherit mcu chip_select f_cpu; })
-            (packages."x86_64-linux"."shift-register" { inherit mcu chip_select f_cpu; })
-            (packages."x86_64-linux"."display" { inherit mcu chip_select f_cpu; })
-          ];
-
-          CFLAGS = mcu_cflags { inherit mcu chip_select f_cpu; };
-          INCLUDE_DIRS = pkgs.lib.concatStringsSep " " (map (dir: "-I${dir}") buildInputs);
-          OBJECT_FILES = pkgs.lib.concatStringsSep " " (map (dir: "${dir}/*.o") buildInputs);
-
-          buildPhase = ''
-            ${avr.gcc}/bin/avr-gcc ${CFLAGS} ${INCLUDE_DIRS} -o main.o -c ${src}/interrupts/main.c
-            ${avr.gcc}/bin/avr-gcc ${CFLAGS} -o interrupts.elf main.o ${OBJECT_FILES}
-            $OBJCOPY -O ihex interrupts.elf interrupts.hex
-            '';
-          installPhase = ''
-            mkdir $out
-            cp interrupts.elf interrupts.hex $out
-            '';
-        };
-
-      packages."x86_64-linux"."power-management-standalone" = (packages."x86_64-linux"."power-management" attiny85);
-
-      packages."x86_64-linux"."power-management" =
-        { mcu, chip_select, f_cpu }:
-        let
-          pkgs = import nixpkgs { system = "x86_64-linux"; };
-          lib = pkgs.lib;
-          avr = pkgs.pkgsCross.avr.buildPackages;
-        in pkgs.stdenv.mkDerivation rec {
-          name = "power-management";
-          src = ./.;
-
-          buildInputs = [
-            (packages."x86_64-linux"."dio" { inherit mcu chip_select f_cpu; })
-          ];
-
-          CFLAGS = mcu_cflags { inherit mcu chip_select f_cpu; };
-          INCLUDE_DIRS = pkgs.lib.concatStringsSep " " (map (dir: "-I${dir}") buildInputs);
-          OBJECT_FILES = pkgs.lib.concatStringsSep " " (map (dir: "${dir}/*.o") buildInputs);
-
-          buildPhase = ''
-            ${avr.gcc}/bin/avr-gcc ${CFLAGS} ${INCLUDE_DIRS} -o main.o -c ${src}/power-management/main.c
-            ${avr.gcc}/bin/avr-gcc ${CFLAGS} -o power-management.elf main.o ${OBJECT_FILES}
-            $OBJCOPY -O ihex power-management.elf power-management.hex
-            '';
-          installPhase = ''
-            mkdir $out
-            cp power-management.elf power-management.hex $out
-            '';
-        };
-        */
-
       devShell."x86_64-linux" =
         let
           pkgs = import nixpkgs { system = "x86_64-linux"; };