diff --git a/base/src/base.c b/base/base.c
similarity index 62%
rename from base/src/base.c
rename to base/base.c
index fc30f2e..2e37f0a 100644
--- a/base/src/base.c
+++ b/base/base.c
@@ -1,9 +1,8 @@
-#include "../base.h"
-
-
+#include "base.h"
 
 rng_t rng_new(uint8_t seed) {
-    return { .mod = 255, .a = 253, .c = 41, .seed = seed };
+    rng_t rng = { .mod = 255, .a = 253, .c = 41, .seed = seed };
+    return rng;
 }
 
 uint8_t rng_sample(rng_t *state) {
diff --git a/base/include/base.h b/base/base.h
similarity index 95%
rename from base/include/base.h
rename to base/base.h
index 7ec9502..c44c208 100644
--- a/base/include/base.h
+++ b/base/base.h
@@ -1,3 +1,4 @@
+#include <avr/io.h>
 
 #ifndef __BASE_H__
 #define __BASE_H__
diff --git a/flake.nix b/flake.nix
index b9ba0c2..664c77e 100644
--- a/flake.nix
+++ b/flake.nix
@@ -11,21 +11,6 @@
       supportedSystems = [ "x86_64-linux" "avr-none" ];
     in
     {
-      /*
-      packages.base."x86_64-linux" =
-        let pkgs = import nixpkgs { system = "x86_64-linux"; };
-        in pkgs.stdenv.mkDerivation rec {
-          name = "wearables-base";
-          src = "./base";
-
-          installPhase = ''
-            mkdir -p $out/include
-            cp include/base.h $out/include
-            '';
-        };
-        */
-
-        /*
       defaultPackage."x86_64-linux" =
         let
           pkgs = import nixpkgs { system = "x86_64-linux"; };
@@ -41,7 +26,11 @@
 
           buildPhase = ''
             set -x
-            ${avr.gcc}/bin/avr-gcc ${CFLAGS} -I${src}/base/include/ -o main.elf ${src}/prototype/src/main.c
+
+            ${avr.gcc}/bin/avr-gcc ${CFLAGS} -I${src}/base -o base.o -c ${src}/base/base.c
+            ${avr.gcc}/bin/avr-gcc ${CFLAGS} -I${src}/base -o sk9822.o -c ${src}/sk9822/sk9822.c
+            ${avr.gcc}/bin/avr-gcc ${CFLAGS} -I${src}/base -I${src}/sk9822 -o main.o -c ${src}/flame/main.c
+            ${avr.gcc}/bin/avr-gcc ${CFLAGS} -o main.elf main.o sk9822.o base.o
             $OBJCOPY -O ihex main.elf main.hex
             '';
           installPhase = ''
@@ -49,7 +38,6 @@
             cp main.elf main.hex $out
             '';
         };
-        */
 
       devShell."x86_64-linux" =
         let
@@ -67,8 +55,8 @@
           name = "Wearables-shell";
           buildInputs = avr;
 
-          GCC="${pkgs.pkgsCross.avr.buildPackages.gcc}";
-          AVR="${pkgs.avrlibc}";
+          GCC = pkgs.pkgsCross.avr.buildPackages.gcc;
+          SIMAVR = pkgs.pkgsCross.avr.buildPackages.simavr;
         };
     };
 }
diff --git a/sk9822/main.c b/flame/main.c
similarity index 98%
rename from sk9822/main.c
rename to flame/main.c
index fff6fe0..23b2fef 100644
--- a/sk9822/main.c
+++ b/flame/main.c
@@ -2,7 +2,7 @@
 #include <util/delay.h>
 
 #include <base.h>
-#include "sk9822.h"
+#include <sk9822.h>
 
 uint8_t random_step(uint8_t value, uint8_t min, uint8_t max, rng_t *rng) {
     int8_t step = (rng_sample(rng) % 32) - 16;
diff --git a/sk9822/Makefile b/sk9822/Makefile
index 12252bf..001ea30 100644
--- a/sk9822/Makefile
+++ b/sk9822/Makefile
@@ -9,15 +9,20 @@ OBJECTS= main.o \
 
 .SUFFIXES: .c .o .h
 
-%.o: %.c %.h
-	${GCC}/bin/avr-gcc ${CFLAGS} ${AVR}/avr/include -I../base/include/ -o $@ -c $<
+
+# /nix/store/fymsi5yk07jvcbdaka6nfhx6s2a7kgpi-avr-stage-final-gcc-debug-wrapper-10.3.0/bin/avr-gcc -O -finline-functions -funsigned-char -funsigned-bitfields -fpack-struct -fshort-enums -Wall -Wstrict-prototypes -DF_CPU=8000000 -std=gnu99 -D__AVR_ATtiny85__=1 -mmcu=attiny85 -I../base/include/ -E -o main.E src/main.c
+
 
 main: main.o sk9822.o
 	# ${GCC}/bin/avr-gcc ${CFLAGS} -I../base/include/ -E -o main.E src/main.c
 	# ${GCC}/bin/avr-gcc ${CFLAGS} -I../base/include/ -S -o main.S src/main.c
+	echo ${GCC}
 	${GCC}/bin/avr-gcc ${CFLAGS} ${LINKFLAGS} -I../base/include/ -o main.elf main.o sk9822.o
 	${OBJCOPY} -O ihex main.elf main.hex
 
+%.o: %.c %.h
+	${GCC}/bin/avr-gcc ${CFLAGS} -I../base/include/ -o $@ -c $<
+
 clean:
 	rm *.o make.elf main.hex main.S main.E
 
diff --git a/sk9822/sk9822.c b/sk9822/sk9822.c
index 4d5d6b8..4505bcc 100644
--- a/sk9822/sk9822.c
+++ b/sk9822/sk9822.c
@@ -1,3 +1,5 @@
+#include "sk9822.h"
+
 void send_byte(io_pin_t data_pin, io_pin_t clock_pin, uint8_t byte) {
     for (int i = 7; i >= 0; i--) {
         if (byte & _BV(i)) {
diff --git a/sk9822/sk9822.h b/sk9822/sk9822.h
index 8357537..b9148da 100644
--- a/sk9822/sk9822.h
+++ b/sk9822/sk9822.h
@@ -1,4 +1,8 @@
 #include <avr/io.h>
+#include <base.h>
+
+#ifndef __SK9822_H__
+#define __SK9822_H__
 
 typedef struct RGB_s {
     uint8_t brightness;
@@ -8,3 +12,5 @@ typedef struct RGB_s {
 } rgb_t;
 
 void send_pixels(io_pin_t data_pin, io_pin_t clock_pin, rgb_t *pixels, uint8_t count);
+
+#endif