Container Caddy fails to start on MacOS

[wilberfan]

I've had SearXNG running under docker on my Synology NAS, but can't seem to get it to run properly on my Mac Mini. The error message I keep getting is:

% docker compose up -d     
[+] Running 20/20
 ✔ redis Pulled                                                                                                                               5.1s 
   ✔ 550e39e58ea8 Download complete                                                                                                           0.4s 
   ✔ c54e7920cd37 Download complete                                                                                                           2.8s 
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   ✔ 6e771e15690e Download complete                                                                                                           2.8s 
   ✔ 7a3641cf0a88 Download complete                                                                                                           2.2s 
   ✔ b752992aca26 Download complete                                                                                                           2.2s 
 ✔ searxng Pulled                                                                                                                             5.6s 
   ✔ 9ecbfb62c2fb Download complete                                                                                                           2.2s 
   ✔ 4e1cb96b1bc1 Download complete                                                                                                           2.8s 
   ✔ 1f4462116bac Download complete                                                                                                           2.2s 
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   ✔ 94e9d8af2201 Download complete                                                                                                           2.8s 
   ✔ 24149cffb8c6 Download complete                                                                                                           2.2s 
 ✔ caddy Pulled                                                                                                                               5.7s 
   ✔ e2e0f3da32ff Download complete                                                                                                           3.2s 
   ✔ d81d99e42177 Download complete                                                                                                           2.4s 
   ✔ 98f22e0ebc59 Download complete                                                                                                           1.9s 
[+] Running 6/7
 ✔ Network searxng-docker_searxng        Created                                                                                              0.1s 
 ✔ Volume "searxng-docker_valkey-data2"  Created                                                                                              0.0s 
 ✔ Volume "searxng-docker_caddy-data"    Created                                                                                              0.0s 
 ✔ Volume "searxng-docker_caddy-config"  Created                                                                                              0.0s 
 ✔ Container searxng-mini                Started                                                                                              0.3s 
 ⠹ Container caddy                       Starting                                                                                             0.3s 
 ✔ Container redis                       Started                                                                                              0.3s 
Error response from daemon: failed to create task for container: failed to create shim task: OCI runtime create failed: runc create failed: unable to start container process: error during container init: error mounting "/usr/local/searxng-docker/Caddyfile" to rootfs at "/etc/caddy/Caddyfile": mount /usr/local/searxng-docker/Caddyfile:/etc/caddy/Caddyfile (via /proc/self/fd/6), flags: 0x5000: not a directory: unknown: Are you trying to mount a directory onto a file (or vice-versa)? Check if the specified host path exists and is the expected type

Semi-noob to docker, so I'm at a loss at how to fix this...apologies!