sdfa

Signed-off-by: Slendi <slendi@socopon.com>

flake.nix

@@ -48,7 +48,7 @@
               PROOT_REL = "/nix/store/${prootStoreBase}/bin/proot";
             in
             pkgs.stdenvNoCC.mkDerivation {
-              name = "myApp.run";
+              name = "${mainProgram}-bdl";
               nativeBuildInputs = [
                 pkgs.coreutils
                 pkgs.findutils
@@ -69,8 +69,8 @@
 
                 # 2) pick app binary and make relative path used by the runner
                 APP_BIN="${drv}/bin/${mainProgram}"
-                if [ -z "''${APP_BIN:-}" ]; then
-                  echo "no executable found in ${appBinGuess}" >&2
+                if [ ! -x "$APP_BIN" ]; then
+                  echo "mainProgram ${mainProgram} not found in ${drv}/bin" >&2
                   exit 1
                 fi
                 APP_REL="/nix/store/$(basename "$(dirname "$APP_BIN")")/$(basename "$APP_BIN")"