diff --git a/devshell.nix b/devshell.nix
index 2de4452..8285f5d 100644
--- a/devshell.nix
+++ b/devshell.nix
@@ -58,8 +58,6 @@ mkShell {
           -e '/OVMF_CODE_4M.fd/s|ovmfs=(|ovmfs=("${OVMF.firmware}","${OVMF.variables}" |' \
         ''
       }${lib.optionalString stdenv.isDarwin ''
-        -e 's|local SHARE_PATH="/usr/share"|local SHARE_PATH="${pkgs.qemu_full}/share"|' \
-        -e '/command -v brew/,/^[[:space:]]*fi$/{ /command -v brew/s/.*/            : # Nix provides QEMU, skip brew check/; /SHARE_PATH.*brew/d; /^[[:space:]]*fi$/d; }' \
         -e 's|ovmfs=("[$][{]SHARE_PATH}/OVMF/OVMF_CODE_4M.secboot.fd"|ovmfs=("${pkgs.qemu_full}/share/qemu/edk2-x86_64-secure-code.fd","${pkgs.qemu_full}/share/qemu/edk2-i386-vars.fd" "''${SHARE_PATH}/OVMF/OVMF_CODE_4M.secboot.fd"|' \
         -e 's|ovmfs=("[$][{]SHARE_PATH}/OVMF/OVMF_CODE_4M.fd"|ovmfs=("${pkgs.qemu_full}/share/qemu/edk2-x86_64-code.fd","${pkgs.qemu_full}/share/qemu/edk2-i386-vars.fd" "''${SHARE_PATH}/OVMF/OVMF_CODE_4M.fd"|' \
         -e 's|ovmfs=("/usr/share/AAVMF/AAVMF_CODE.fd"|ovmfs=("${pkgs.qemu_full}/share/qemu/edk2-aarch64-code.fd","${pkgs.qemu_full}/share/qemu/edk2-arm-vars.fd" "/usr/share/AAVMF/AAVMF_CODE.fd"|' \