diff --git a/.gitignore b/.gitignore
index 469bbd39a5..ea6b68ec5f 100644
--- a/.gitignore
+++ b/.gitignore
@@ -6,6 +6,7 @@
 *.swo
 # C stuff
 *.o
+*.a
 *.obj
 # Diff droppings
 *.orig
@@ -77,7 +78,6 @@ uptime-*.json
 /coverage_html/
 /callgraph/
 
-
 # /contrib/
 /contrib/dist/tor.sh
 /contrib/dist/torctl
@@ -137,9 +137,6 @@ uptime-*.json
 /src/Makefile
 /src/Makefile.in
 
-# /src/trace
-/src/trace/libor-trace.a
-
 # /src/config/
 /src/config/Makefile
 /src/config/Makefile.in
@@ -149,89 +146,10 @@ uptime-*.json
 /src/config/torrc.minimal
 
 # /src/ext/
-/src/ext/ed25519/ref10/libed25519_ref10.a
 /src/ext/ed25519/ref10/libed25519_ref10.lib
-/src/ext/ed25519/donna/libed25519_donna.a
 /src/ext/ed25519/donna/libed25519_donna.lib
-/src/ext/keccak-tiny/libkeccak-tiny.a
 /src/ext/keccak-tiny/libkeccak-tiny.lib
 
-# /src/lib
-/src/lib/libcurve25519_donna.a
-/src/lib/libtor-buf.a
-/src/lib/libtor-buf-testing.a
-/src/lib/libtor-compress.a
-/src/lib/libtor-compress-testing.a
-/src/lib/libtor-confmgt.a
-/src/lib/libtor-confmgt-testing.a
-/src/lib/libtor-container.a
-/src/lib/libtor-container-testing.a
-/src/lib/libtor-crypt-ops.a
-/src/lib/libtor-crypt-ops-testing.a
-/src/lib/libtor-ctime.a
-/src/lib/libtor-ctime-testing.a
-/src/lib/libtor-dispatch.a
-/src/lib/libtor-dispatch-testing.a
-/src/lib/libtor-encoding.a
-/src/lib/libtor-encoding-testing.a
-/src/lib/libtor-evloop.a
-/src/lib/libtor-evloop-testing.a
-/src/lib/libtor-err.a
-/src/lib/libtor-err-testing.a
-/src/lib/libtor-fdio.a
-/src/lib/libtor-fdio-testing.a
-/src/lib/libtor-fs.a
-/src/lib/libtor-fs-testing.a
-/src/lib/libtor-geoip.a
-/src/lib/libtor-geoip-testing.a
-/src/lib/libtor-intmath.a
-/src/lib/libtor-intmath-testing.a
-/src/lib/libtor-llharden.a
-/src/lib/libtor-llharden-testing.a
-/src/lib/libtor-lock.a
-/src/lib/libtor-lock-testing.a
-/src/lib/libtor-log.a
-/src/lib/libtor-log-testing.a
-/src/lib/libtor-malloc.a
-/src/lib/libtor-malloc-testing.a
-/src/lib/libtor-math.a
-/src/lib/libtor-math-testing.a
-/src/lib/libtor-memarea.a
-/src/lib/libtor-memarea-testing.a
-/src/lib/libtor-meminfo.a
-/src/lib/libtor-meminfo-testing.a
-/src/lib/libtor-net.a
-/src/lib/libtor-net-testing.a
-/src/lib/libtor-osinfo.a
-/src/lib/libtor-osinfo-testing.a
-/src/lib/libtor-process.a
-/src/lib/libtor-process-testing.a
-/src/lib/libtor-pubsub.a
-/src/lib/libtor-pubsub-testing.a
-/src/lib/libtor-sandbox.a
-/src/lib/libtor-sandbox-testing.a
-/src/lib/libtor-string.a
-/src/lib/libtor-string-testing.a
-/src/lib/libtor-smartlist-core.a
-/src/lib/libtor-smartlist-core-testing.a
-/src/lib/libtor-term.a
-/src/lib/libtor-term-testing.a
-/src/lib/libtor-thread.a
-/src/lib/libtor-thread-testing.a
-/src/lib/libtor-time.a
-/src/lib/libtor-time-testing.a
-/src/lib/libtor-tls.a
-/src/lib/libtor-tls-testing.a
-/src/lib/libtor-trace.a
-/src/lib/libtor-version.a
-/src/lib/libtor-version-testing.a
-/src/lib/libtor-wallclock.a
-/src/lib/libtor-wallclock-testing.a
-
-# /src/tor
-/src/core/libtor-app.a
-/src/core/libtor-app-testing.a
-
 # /src/app
 /src/app/tor
 /src/app/tor.exe
@@ -277,7 +195,6 @@ uptime-*.json
 /src/test/fuzz/lf-fuzz-*
 
 # /src/tools/
-/src/tools/libtorrunner.a
 /src/tools/tor-checkkey
 /src/tools/tor-resolve
 /src/tools/tor-cov-resolve
@@ -293,10 +210,6 @@ uptime-*.json
 /src/tools/Makefile
 /src/tools/Makefile.in
 
-# /src/trunnel/
-/src/trunnel/libor-trunnel-testing.a
-/src/trunnel/libor-trunnel.a
-
 # /src/win32/
 /src/win32/Makefile
 /src/win32/Makefile.in
diff --git a/changes/ticket33642 b/changes/ticket33642
new file mode 100644
index 0000000000..b81edf7613
--- /dev/null
+++ b/changes/ticket33642
@@ -0,0 +1,4 @@
+  o Minor features (developer tooling):
+    - Refrain from listing all .a files that are generated by Tor build in
+      .gitignore. Add a single wildcard *.a entry that covers all of them for
+      present and future. Closes ticket 33642.