diff --git a/Sage.gitignore b/Sage.gitignore
new file mode 100644
index 00000000..43f58abc
--- /dev/null
+++ b/Sage.gitignore
@@ -0,0 +1,286 @@
+## We use this file both as .gitignore and .dockerignore,
+## which have different semantics.
+
+/dist
+/local
+/logs
+/upstream
+
+# Autotools generated files
+/aclocal.m4
+/autom4te.cache/
+/config/install-sh
+/config/compile
+/config/config.guess
+/config/config.sub
+/config/install-sh
+/config/missing
+/config.log
+/config.status
+/configure
+/conftest*
+/confdefs.h
+
+/m4/sage_spkg_configures.m4
+/m4/sage_spkg_versions*.m4
+
+# no longer generated, but may still be in user worktrees
+/src/lib/pkgconfig
+
+# Environment files generated by bootstrap-conda.
+# The files without Python version are no longer generated
+# but may still be in users' directories.
+/environment.yml
+/environment-3.9.yml
+/environment-3.10.yml
+/environment-3.11.yml
+/environment-optional.yml
+/environment-optional-3.9.yml
+/environment-optional-3.10.yml
+/environment-optional-3.11.yml
+/src/environment.yml
+/src/environment-3.9.yml
+/src/environment-3.10.yml
+/src/environment-3.11.yml
+/src/environment-dev.yml
+/src/environment-dev-3.9.yml
+/src/environment-dev-3.10.yml
+/src/environment-dev-3.11.yml
+/src/environment-optional.yml
+/src/environment-optional-3.9.yml
+/src/environment-optional-3.10.yml
+/src/environment-optional-3.11.yml
+
+/src/setup.cfg
+/src/requirements.txt
+/src/pyproject.toml
+/src/Pipfile
+/src/Pipfile.lock
+/Pipfile
+/Pipfile.lock
+
+# Various editors
+*~
+**/*~
+
+# Emacs
+\#*\#
+**/\#*\#
+.\#*
+**/.\#*
+
+# Vim
+*.swp
+**/*.swp
+*.swo
+**/*.swo
+*.swn
+**/*.swn
+*.un~
+.netrwhist
+
+# PyCharm
+.idea
+.iml
+
+# VSCode
+**/.vscode/*
+!.vscode/settings.json
+!.vscode/tasks.json
+!.vscode/launch.json
+!.vscode/extensions.json
+**/*.code-workspace
+**/.history
+
+# XCode
+xcuserdata/
+
+# Eclipse
+*.pydevproject
+.project
+.metadata
+*.tmp
+*.bak
+**/*.bak
+*.swp
+*~.nib
+.classpath
+.settings/
+.loadpath
+.externalToolBuilders/
+.cproject
+.buildpath
+
+# OSX specific temporary files
+.DS_Store
+**/.DS_Store
+._*
+.AppleDouble
+.LSOverride
+.Spotlight-V100
+.Trashes
+
+# Windows
+$RECYCLE.BIN/
+
+# SublimeText
+*.sublime-workspace
+
+# SageMathCloud
+*.sage-chat
+*.sage-history
+*.syncdoc*
+
+# Jupyter
+.ipynb_checkpoints
+Untitled*.ipynb
+
+# GitLab CI generated files
+gitlab-build-docker.log
+
+# Byte-compiled / optimized / DLL files
+__pycache__/
+**/__pycache__
+*.py[cod]
+**/*.py[cod]
+*$py.class
+
+# Generated by sage_setup.autogen
+/src/sage/ext/interpreters
+
+# Generated Cython files
+*.so
+**/*.so
+/src/cython_debug
+# Most C and C++ files are generated by Cython and should not
+# be included in the sdist.
+/src/sage/**/*.c
+/src/sage/**/*.cpp
+# C header generated by Cython
+/src/sage/modular/arithgroup/farey_symbol.h
+# List of C and C++ files that are actual source files,
+# NOT generated by Cython. The same list appears in src/MANIFEST.in
+!/src/sage/cpython/debugimpl.c
+!/src/sage/graphs/base/boost_interface.cpp
+!/src/sage/graphs/cliquer/cl.c
+!/src/sage/graphs/graph_decompositions/sage_tdlib.cpp
+!/src/sage/libs/eclib/wrap.cpp
+!/src/sage/libs/linkages/padics/relaxed/flint_helper.c
+!/src/sage/misc/inherit_comparison_impl.c
+!/src/sage/modular/arithgroup/farey.cpp
+!/src/sage/modular/arithgroup/sl2z.cpp
+!/src/sage/rings/bernmm/bern_modp.cpp
+!/src/sage/rings/bernmm/bern_modp_util.cpp
+!/src/sage/rings/bernmm/bern_rat.cpp
+!/src/sage/rings/bernmm/bernmm-test.cpp
+!/src/sage/rings/padics/transcendantal.c
+!/src/sage/rings/polynomial/weil/power_sums.c
+!/src/sage/schemes/hyperelliptic_curves/hypellfrob/hypellfrob.cpp
+!/src/sage/schemes/hyperelliptic_curves/hypellfrob/recurrences_ntl.cpp
+!/src/sage/stats/distributions/dgs_bern.c
+!/src/sage/stats/distributions/dgs_gauss_dp.c
+!/src/sage/stats/distributions/dgs_gauss_mp.c
+!/src/sage/symbolic/ginac/*.cpp
+
+# Temporary build files
+build/temp.*/
+build/bin/sage-build-env-config
+
+# Generated files in the top-level source trees
+/pkgs/*/build
+/pkgs/*/dist
+/pkgs/*/MANIFEST
+/pkgs/*/*.egg-info
+/pkgs/*/.tox
+
+/pkgs/sage-conf_pypi/sage_root/config.log
+/pkgs/sage-conf_pypi/sage_root/config.status
+/pkgs/sage-conf_pypi/sage_root/local/
+/pkgs/sage-conf_pypi/sage_root/logs/
+/pkgs/sage-conf_pypi/sage_root/prefix
+/pkgs/sage-conf_pypi/sage_root/src/bin/sage-env-config
+/pkgs/sage-conf_pypi/sage_root/src/bin/sage-src-env-config
+/pkgs/sage-conf_pypi/sage_root/upstream/
+/pkgs/sage-conf_pypi/sage_root/venv
+
+/pkgs/sagemath-objects/setup.cfg
+/pkgs/sagemath-bliss/setup.cfg
+/pkgs/sagemath-coxeter3/setup.cfg
+/pkgs/sagemath-mcqd/setup.cfg
+/pkgs/sagemath-meataxe/setup.cfg
+/pkgs/sagemath-sirocco/setup.cfg
+/pkgs/sagemath-tdlib/setup.cfg
+/pkgs/sagemath-categories/setup.cfg
+/pkgs/sagemath-environment/setup.cfg
+/pkgs/sagemath-repl/setup.cfg
+/pkgs/sagemath-objects/pyproject.toml
+/pkgs/sagemath-bliss/pyproject.toml
+/pkgs/sagemath-coxeter3/pyproject.toml
+/pkgs/sagemath-mcqd/pyproject.toml
+/pkgs/sagemath-meataxe/pyproject.toml
+/pkgs/sagemath-sirocco/pyproject.toml
+/pkgs/sagemath-tdlib/pyproject.toml
+/pkgs/sagemath-categories/pyproject.toml
+/pkgs/sagemath-environment/pyproject.toml
+/pkgs/sagemath-repl/pyproject.toml
+/pkgs/sagemath-objects/requirements.txt
+/pkgs/sagemath-bliss/requirements.txt
+/pkgs/sagemath-coxeter3/requirements.txt
+/pkgs/sagemath-mcqd/requirements.txt
+/pkgs/sagemath-meataxe/requirements.txt
+/pkgs/sagemath-sirocco/requirements.txt
+/pkgs/sagemath-tdlib/requirements.txt
+/pkgs/sagemath-categories/requirements.txt
+/pkgs/sagemath-environment/requirements.txt
+/pkgs/sagemath-repl/requirements.txt
+/pkgs/sagemath-categories/MANIFEST.in
+
+# same for old locations - before Issue #31577
+/build/pkgs/*/src/build
+/build/pkgs/*/src/dist
+/build/pkgs/*/src/MANIFEST
+/build/pkgs/*/src/*.egg-info
+/build/pkgs/*/src/.tox
+
+# Generated by docbuild
+/src/doc/en/reference/*/sage
+/src/doc/en/reference/*/sage_docbuild
+/src/doc/en/reference/sage
+/src/doc/en/reference/spkg/*.rst
+/src/doc/output
+/src/doc/en/installation/*.txt
+/src/doc/en/reference/repl/*.txt
+
+# Distribution / packaging
+src/*.egg-info/
+/src/.cython_version
+/src/build
+/src/Makefile
+/src/bin/sage-env-config
+/src/bin/sage-src-env-config
+
+# Virtual environments
+/venv
+src/.env
+src/.venv
+src/env/
+src/venv/
+src/ENV/
+src/env.bak/
+src/venv.bak/
+
+# mypy
+**/.mypy_cache/
+
+# tox generated files
+/.tox
+/build/.tox
+**/.tox
+/prefix
+
+# code coverage generated files
+src/.coverage/
+
+# git worktree
+worktree*
+**/worktree*