The mount path had changed months back:
commit ccc8708a6b
Author: Chandler Swift <chandler@chandlerswift.com>
Date: Tue Jan 14 23:31:14 2025 -0600
bert: Rename mount so systemd doesn't escape hyphen
diff --git a/bert/configuration.nix b/bert/configuration.nix
index 61f79b1..4072b87 100644
--- a/bert/configuration.nix
+++ b/bert/configuration.nix
@@ -40 +40 @@
- fileSystems."/mnt/bigbird-public" = {
+ fileSystems."/mnt/bigbird_public" = {
but I missed this use, so `/sheets` was 404ing.
It looks like this was CLOSED WONTFIX: How can we _possibly_ know that
upon an error, the developer might want us to send an indication of that
error??!!1! Snark aside (mine and his): it looks like there's not a
great way to enable sane error behavior globally :/
https://caddy.community/t/handling-errors-globally/17174/2
In the future, I should probably make this a snippet or something.