chore(users/edef): move to contrib

Change-Id: I1a6972fab8ada26917f29607fc401e376d634070

contrib/narinfo2parquet/Cargo.toml

@@ -0,0 +1,28 @@
+[package]
+name = "narinfo2parquet"
+version = "0.1.0"
+edition = "2021"
+
+# We can't join the //tvix workspace, because that locks zstd
+# at an ancient version, which is incompatible with polars
+[workspace]
+members = ["."]
+
+[dependencies]
+anyhow = { version = "1.0.75", features = ["backtrace"] }
+jemallocator = "0.5.4"
+nix-compat = { version = "0.1.0", path = "../../snix/nix-compat" }
+tempfile-fast = "0.3.4"
+zstd = "0.13.0"
+
+# See https://github.com/pola-rs/polars/issues/19157
+hashbrown = { version = "0.14.5", features = ["raw"] }
+
+[dependencies.polars]
+version = "0.36.2"
+default-features = false
+features = [
+    "parquet",
+    "polars-io",
+    "dtype-categorical"
+]