diff --git a/.rhiza/.env b/.rhiza/.env
deleted file mode 100644
index 7e82dde0..00000000
--- a/.rhiza/.env
+++ /dev/null
@@ -1,25 +0,0 @@
-# .rhiza/.env — project-local environment overrides (optional)
-#
-# This file is optional.  If absent, rhiza.mk falls back to built-in defaults:
-#   SOURCE_FOLDER     = src
-#   MARIMO_FOLDER     = docs/notebooks
-#   RHIZA_CI_OS_MATRIX = ["ubuntu-latest"]
-#
-# Add or uncomment only the variables you want to override.
-# Variables defined here are exported to all Make recipes.
-#
-# Assignments here use a plain `=`, and rhiza.mk `-include`s this file. A makefile
-# assignment beats an environment variable in GNU make's precedence order (only a
-# command-line `make VAR=...` beats it), so anything set below cannot be overridden
-# by a caller that exports the variable — it can only be overridden on the command
-# line. Set a variable here to pin it for every invocation; leave it unset to let
-# the built-in default apply and remain env-overridable.
-#
-# RHIZA_CI_OS_MATRIX is deliberately NOT set here. `.github/workflows/rhiza_ci.yml`
-# selects the matrix per caller by exporting it (#1526) — the mother repo opts itself
-# into macOS, consumers keep the single-OS default and spend no extra minutes. Pinning
-# it in this file silently defeats that mechanism for everyone, which is exactly what
-# it did until #1545. Override it in your own .rhiza/.env if you want more platforms.
-
-MARIMO_FOLDER=docs/notebooks
-SOURCE_FOLDER=src
diff --git a/.rhiza/.gitignore b/.rhiza/.gitignore
deleted file mode 100644
index f0ea93e6..00000000
--- a/.rhiza/.gitignore
+++ /dev/null
@@ -1,2 +0,0 @@
-# Dedicated rhiza ignore rules
-!.env
\ No newline at end of file