diff --git a/.gitignore b/.gitignore
index 43f58abcafe..0e00d5965b4 100644
--- a/.gitignore
+++ b/.gitignore
@@ -223,6 +223,7 @@ build/bin/sage-build-env-config
 /pkgs/sagemath-categories/pyproject.toml
 /pkgs/sagemath-environment/pyproject.toml
 /pkgs/sagemath-repl/pyproject.toml
+/pkgs/sagemath-standard/pyproject.toml
 /pkgs/sagemath-objects/requirements.txt
 /pkgs/sagemath-bliss/requirements.txt
 /pkgs/sagemath-coxeter3/requirements.txt
diff --git a/pkgs/sagemath-standard/pyproject.toml b/pkgs/sagemath-standard/pyproject-monolithic.toml
similarity index 100%
rename from pkgs/sagemath-standard/pyproject.toml
rename to pkgs/sagemath-standard/pyproject-monolithic.toml
diff --git a/pkgs/sagemath-standard/pyproject-monolithic.toml.m4 b/pkgs/sagemath-standard/pyproject-monolithic.toml.m4
new file mode 120000
index 00000000000..25dbae84866
--- /dev/null
+++ b/pkgs/sagemath-standard/pyproject-monolithic.toml.m4
@@ -0,0 +1 @@
+../../src/pyproject.toml.m4
\ No newline at end of file
diff --git a/pkgs/sagemath-standard/pyproject.toml.m4 b/pkgs/sagemath-standard/pyproject.toml.m4
deleted file mode 120000
index 25dbae84866..00000000000
--- a/pkgs/sagemath-standard/pyproject.toml.m4
+++ /dev/null
@@ -1 +0,0 @@
-../../src/pyproject.toml.m4
\ No newline at end of file
diff --git a/pkgs/sagemath-standard/pyproject.toml.m4 b/pkgs/sagemath-standard/pyproject.toml.m4
new file mode 100644
index 00000000000..f96a5c18ca8
--- /dev/null
+++ b/pkgs/sagemath-standard/pyproject.toml.m4
@@ -0,0 +1,30 @@
+[build-system]
+# Minimum requirements for the build system to execute.
+requires = [
+    "sage_setup[autogen]",
+    # Some version of sage-conf is required.
+    # Note that PEP517/518 have no notion of optional sage_spkg dependencies:
+    # https://github.com/pypa/pip/issues/6144
+     esyscmd(`sage-get-system-packages install-requires-toml \
+        sage_conf      \
+        setuptools \
+        wheel          \
+        sage_setup     \
+        sagemath_environment \
+        cypari         \
+        cysignals      \
+        cython         \
+        gmpy2          \
+        jinja2         \
+        jupyter_core   \
+        numpy          \
+        pkgconfig      \
+        pplpy          \
+        memory_allocator \
+                    ')]
+build-backend = "setuptools.build_meta"
+
+[tool.conda-lock]
+platforms = [
+    'osx-64', 'linux-64', 'linux-aarch64', 'osx-arm64'
+]
diff --git a/pkgs/sagemath-standard/setup.py b/pkgs/sagemath-standard/setup.py
index 7f6318a0fa0..bf121ead51b 100755
--- a/pkgs/sagemath-standard/setup.py
+++ b/pkgs/sagemath-standard/setup.py
@@ -28,9 +28,6 @@
 ### Set source directory
 #########################################################
 
-# PEP 517 builds do not have . in sys.path
-sys.path.insert(0, os.path.dirname(__file__))
-
 import sage.env
 sage.env.SAGE_SRC = os.getcwd()
 from sage.env import *
diff --git a/src/MANIFEST.in b/src/MANIFEST.in
index 07a135dbf07..5b2fe278ecd 100644
--- a/src/MANIFEST.in
+++ b/src/MANIFEST.in
@@ -7,6 +7,8 @@ prune sage_setup
 prune sage_docbuild
 prune doc
 
+exclude pyproject-monolithic*
+
 #
 # Most C and C++ files are generated by Cython and should not
 # be included in the sdist.