diff --git a/.gitignore b/.gitignore
index 810322d7..2c83e652 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,4 +1,7 @@
 .venv/
+.venv*/
+.311/
+.3[0-9][0-9]/
 logs/
 .claude/*
 CLAUDE.md
@@ -28,3 +31,16 @@ decnet.json
 .hypothesis/
 profiles/*
 tests/test_decnet.db*
+
+# Nested git clone of the wiki — not a submodule, just a local
+# working copy so we can edit docs without a full round-trip.
+wiki-checkout/
+
+# Scratch test/debug outputs that leak from saved `pytest > hang.log`
+# or `pytest > schem` redirections.
+hang.log
+schem
+*.pytest.log
+
+# pydeps-style dependency graph dumps from local analysis runs.
+deps.txt