Determine runtime dir based on executable location or env override.

1 files changed, 2 insertions, 0 deletions

diff --git a/shell.nix b/shell.nix
index 82af46d4..0a26b6ad 100644
--- a/shell.nix
+++ b/shell.nix
@@ -11,5 +11,7 @@ pkgs.mkShell {
   RUST_BACKTRACE = "1";
   # https://github.com/rust-lang/rust/issues/55979
   LD_LIBRARY_PATH="${stdenv.cc.cc.lib}/lib64:$LD_LIBRARY_PATH";
+
+  HELIX_RUNTIME=./runtime;
 }