diff --git a/README.md b/README.md
index 344486b..e87a367 100644
--- a/README.md
+++ b/README.md
@@ -215,6 +215,7 @@ To Contribute, checkout our [`CONTRIBUTING.md`](./CONTRIBUTING.md).
 | Name | Alternative(s) | Evidence | Notes |
 |---|---|---|---|
 | [harfbuzz](https://github.com/harfbuzz/harfbuzz) | Not realistically replaceable currently, use earlier version. | [Core developer enthusiastically discloses LLM usage](https://mastodon.social/@behdad@typo.social/116172838611778656) | |
+| [sd-bus](https://www.freedesktop.org/software/systemd/man/latest/sd-bus.html) (via systemd) | basu (sd-bus extracted from systemd 2 years before first AI commits) | *See systemd section* | |
 
 ### CSS
 
@@ -332,6 +333,7 @@ This is for both social media websites and apps.
 |---|---|---|
 | [framework-system](https://github.com/FrameworkComputer/framework-system) | BIOS settings, UI widgets, /proc | [CLAUDE file](https://github.com/FrameworkComputer/framework-system/blob/main/CLAUDE.md), [Claude usage by maintainer](https://github.com/FrameworkComputer/framework-system/pull/250) |
 | [rsyslog](https://www.rsyslog.com/) | [syslog-ng](https://www.syslog-ng.com/products/open-source-log-management/) | Explicitly stated in the [documentation](https://www.rsyslog.com/doc/about/ai_first.html) |
+| [systemd](https://github.com/systemd/systemd) | dinit, s6, OpenRC | [AGENTS.md](https://github.com/systemd/systemd/blob/main/AGENTS.md), [Claude used for commits](https://github.com/systemd/systemd/commit/744d589632c545e90ae76853abbfbc90cb530e24) |
 
 ## Operating Systems