Update README based on a more recent memory of how to set things up

Containerfile

@@ -18,9 +18,8 @@ RUN CGO_ENABLED=0 make -C /opt/act_runner build
 FROM base
 COPY --from=runner /opt/act_runner/act_runner /usr/local/bin/
 RUN apt-get -y install \
-  hugo
-RUN apt-get -y install \
-  uidmap
+  hugo \
+  zip
 RUN useradd builder -md /app
 USER builder
 WORKDIR /app

README.md

@@ -19,21 +19,24 @@ so I'm able to do everything I want that way.
 How To Set This Up
 ------------------
 
-1. Go get a runner registration token from your forgejo/gitea instance.
-2. Decide in advance what tags you want to use.
-   Don't use the default tags, or it will think you want docker.
-   `big-builder,go,python3,hugo` isn't an awful choice.
-3. Run the code block below.
-4. Email me to let me know if these instructions worked for you!
+1. Generate an example configuration, and edit it.
+   Be sure to set tags here:
+   I use something like `big-builder,go,python3,hugo`,
+   and then I can say things like `requires: hugo` in my jobs.
+2. Go get a runner registration token from your forgejo/gitea instance.
+3. Run the interactive registation step.
+4. Run the daemon.
+5. Email me to let me know if these instructions worked for you!
 
 ```sh
 mkdir /srv/big-builder
-docker run --rm -it -u 0:0 -v /srv/big-builder:/app big-builder   # This will ask you 3 questions
-docker run -d --restart=always -v /srv/big-builder:/app:ro big-builder daemon
+podman run --rm big-builder generate-config > /srv/big-builder/config.yaml # This generates a sample config
+vim /srv/big-builder/config.yaml # Edit the config to your liking
+podman run --rm -it -u 0:0 -v /srv/big-builder:/app big-builder register   # Tags here are overridden by config.yaml
+podman run -d --restart=always -v /srv/big-builder:/app:ro big-builder daemon
 ```
 
-On my raspberry pi,
-I used the tags `aarch64,big-builder,go,python3,hugo`.
+Docker can be used instead of podman, with the same arguments.
 
 More documentation is at
 [gitea act runner](https://docs.gitea.com/usage/actions/act-runner).
@@ -50,8 +53,9 @@ FROM git.woozle.org/neale/big-builder
 RUN apt-get -y install nethack
 ```
 
-Even better, steal this one's Dockerfile and add stuff to it.
-You shouldn't trust my image to be malware-free.
+Even better, steal this one's Containerfile and add stuff to it.
+There's not much to it, and 
+you shouldn't trust my image to be malware-free.
 
 
 Caveats
@@ -65,3 +69,5 @@ This is a problem with the runner that they might fix one day.
 Just something to bear in mind:
 I spent a bit of time chasing this one down.
 
+I may have additional bugs/wishlist items open at
+https://git.woozle.org/neale/big-builder/issues