didn't need u-boot

default.nix

@@ -16,7 +16,6 @@ let
       ];
     };
   });
-  pkgsNative = pkgs.pkgsBuildBuild;
 
   config = (pkgs.lib.evalModules {
     modules = [
@@ -50,19 +49,16 @@ in {
   # cross-compiling nix-shell for any package we're customizing
   inherit pkgs;
 
-  buildEnv =
+  buildEnv = pkgs.mkShell {
-    pkgs.mkShell {
+    packages = with pkgs.pkgsBuildBuild; [
-      packages =
-        with pkgsNative; [
       tufted
       routeros.routeros
       routeros.ros-exec-script
+      mips-vm
       borderVm.build.vm
       go-l2tp
       min-copy-closure
       fennelrepl
-        (mips-vm.override { inherit (pkgs) ubootQemuAarch64; })
     ];
-
   };
 }

pkgs/mips-vm/default.nix

@@ -1,14 +1,12 @@
 {
   qemu
 , socat
-, ubootQemuAarch64
 , writeShellScriptBin
 , symlinkJoin
 , lib
 }: let
   mips-vm = writeShellScriptBin "mips-vm" ''
      export PATH="${lib.makeBinPath [qemu]}:$PATH"
-     export UBOOT=${ubootQemuAarch64}/u-boot.bin
      ${builtins.readFile ./mips-vm.sh}
   '';
   connect = writeShellScriptBin "connect-vm" ''

pkgs/mips-vm/mips-vm.sh

@@ -48,7 +48,7 @@ qemu-system-aarch64 \
     -echr 16 \
     -append "liminix default earlycon=smh console=ttyAMA0,38400n8 panic=10 oops=panic init=$INIT loglevel=8 root=/dev/mtdblock0 block2mtd.block2mtd=/dev/vda,65536" \
     -semihosting \
-    -cpu cortex-a72 -bios $UBOOT \
+    -cpu cortex-a72 \
     -drive file=$rootfs,format=raw,readonly=off,if=virtio,index=0 \
     ${initramfs} \
     -netdev socket,id=access,mcast=230.0.0.1:1234,localaddr=127.0.0.1 \