diff --git a/.cargo/config.toml b/.cargo/config.toml
deleted file mode 100644
index e0e8108b..00000000
--- a/.cargo/config.toml
+++ /dev/null
@@ -1,3 +0,0 @@
-[build]
-build-dir = "{cargo-cache-home}/build/yoi"
-incremental = false
diff --git a/devshell.nix b/devshell.nix
index 8364784b..18ff1e14 100644
--- a/devshell.nix
+++ b/devshell.nix
@@ -13,9 +13,8 @@ pkgs.mkShell {
   PLAYWRIGHT_BROWSERS_PATH = "${pkgs.playwright-driver.browsers}";
   PLAYWRIGHT_SKIP_BROWSER_DOWNLOAD = "1";
 
-  # sccache is additive to Cargo's shared build-dir, so keep its disk usage bounded.
+  # Cache storage and limits belong to the host's sccache configuration.
   RUSTC_WRAPPER = "${pkgs.sccache}/bin/sccache";
-  SCCACHE_CACHE_SIZE = "5G";
 
   buildInputs = with pkgs; [
     pkg-config