diff --git a/README.md b/README.md
index 75ca1d5..7c2a137 100644
--- a/README.md
+++ b/README.md
@@ -56,18 +56,60 @@ There are two ways to collaborate and improve the algorithm
 
 4. Use bsctl to dump the keywords to stdout and then copy and past them into [Bluesky Feed Creator](https://blueskyfeedcreator.com/)
 
-## Commands For AIEngineering and PlatformEngineering
-
-```bash {"id":"01JBTAGCHJ9H72SM46CHAPGPY3"}
-cd ~/git_bskylists
-git fetch origin
-git checkout origin/main
-cd ~/git_bskyctl
-#make build
-.build/bsctl apply ~/git_bskylists/aiengineering.yaml
-.build/bsctl apply ~/git_bskylists/platformengineering.yaml
+## Identifying Community Members Algorithmically
+
+Rather than manually curating a list of handles, we can use algorithms to identify community members.
+The algorithm is very simple
+
+1. Take a set of seed handles
+1. Fetch the profile for everyone who **follows** those accounts
+1. Use an LLM to decide whether the profile satisfies some criterion
+
+To use this functionality define a `CommunityBuilder` resource in a YAML file like the one below.
+
+```yaml
+apiVersion: "bsctl.dev/v1alpha1"
+kind: "CommunityBuilder"
+metadata:
+    labels: {}
+    name: PlatformCommunity
+definition:
+    name: Platform Engineer
+    criterion:
+        - They are working on an internal developer platform
+        - They describe their job role as platform engineer, ml platform engineer, devops, infrastructure engineer or SRE
+        - They work with technologies used to build platforms; eg. kubernetes, cloud, argo
+        - They describe practices central to platform engineering; e.g. IAC, configuration, containers, gitops, cicd
+    examples:
+        - profile: I'm a platform engineer at acme.co
+          member: true
+          explanation: ""
+seeds:
+    - handle: kelseyhightower.com
+      did: ""
+outputFile: /Users/jlewi/git_bskylists//Users/jlewi/git_bskylists/kelseyhightower.followers.platformengineering.yaml
 ```
 
+* Everything in the `definition` section is used as input to the [LLM Prompt](https://github.com/jlewi/bsctl/blob/main/pkg/lists/profile_prompt.tmpl)
+* To perform the graph walk first configure your OpenAI APIKey
+  
+  ```
+  bsctl config set openai.apiKeyFile=/path/to/openai/apikey
+  ```
+
+* You can then perform the graph walk using the CLI
+
+  ```
+  bsctl apply /path/to/your/community.yaml
+  ```
+
+* This will write the results to the outputFile you specified
+* The output will contain an AccountList that tells you
+  1. Whether the account is a member of the community
+  1. A reason for the decision
+
+* For an example of the output see [kelseyhightower.followers.platformengineering.yaml]
+
 ## License
 
 MIT
diff --git a/cmd/root.go b/cmd/root.go
index f92a771..f4ea2f8 100644
--- a/cmd/root.go
+++ b/cmd/root.go
@@ -23,6 +23,7 @@ func NewRootCmd() *cobra.Command {
 	rootCmd.AddCommand(NewConfigCmd())
 	rootCmd.AddCommand(NewApplyCmd())
 	rootCmd.AddCommand(NewDumpCmd())
+	rootCmd.AddCommand(NewMergeCmd())
 	rootCmd.AddCommand(NewTidyCmd())
 	rootCmd.AddCommand(NewDumpStarterPack())
 	return rootCmd
diff --git a/notes/2024_11_09_platform_eng.md b/notes/2024_11_09_platform_eng.md
index d1fa54b..db27e94 100644
--- a/notes/2024_11_09_platform_eng.md
+++ b/notes/2024_11_09_platform_eng.md
@@ -16,6 +16,34 @@ make build
 ../.build/bsctl tidy /Users/jlewi/git_bskylists/platformengineering.yaml
 ```
 
+# Merge Kelsey's list into the platform engineering list
+
+* How big is the group currently
+
+```bash
+yq ".items | length" /Users/jlewi/git_bskylists/platformengineering.yaml
+```
+
+```bash {"id":"01JC9VSV7Z96A62PERW4HKY5KT"}
+../.build/bsctl merge --dest=/Users/jlewi/git_bskylists/platformengineering.yaml \
+  --source=/Users/jlewi/git_bskylists/kelseyhightower.followers.platformengineering.yaml \
+  --source-filter=members
+```
+
+```bash
+yq ".items | length" /Users/jlewi/git_bskylists/platformengineering.yaml
+```
+
+* So it had 204 items before and now it has 548
+* Now lets sync it to bluesky
+
+```bash
+../.build/bsctl apply /Users/jlewi/git_bskylists/platformengineering.yaml
+```
+
+The error message indicates that the `merge` command is not recognized. This could be due to a few reasons, such as a typo in the command or the version of the `bsctl` tool not supporting the merge functionality.
+1. **Check available commands** to ensure that `merge` is a valid command in your current version:
+
 ```bash
 
 ```
diff --git a/pkg/api/v1alpha1/accounts.go b/pkg/api/v1alpha1/accounts.go
index 1192156..d08c847 100644
--- a/pkg/api/v1alpha1/accounts.go
+++ b/pkg/api/v1alpha1/accounts.go
@@ -26,12 +26,9 @@ type AccountList struct {
 	// include and exclude list.
 	Items []Membership `json:"items" yaml:"items"`
 
-	// TODO(jeremy): Get rid of this; use Accounts
+	// TODO(jeremy): This field is deprecated. We keep it in only to enable the tidy command to convert to the
+	// new format which uses Items.
 	Accounts []Account `json:"accounts,omitempty" yaml:"accounts,omitempty"`
-
-	// TODO(jeremy): Get rid of these fields
-	Members []Membership `json:"members,omitempty" yaml:"members,omitempty"`
-	Exclude []Membership `json:"exclude,omitempty" yaml:"exclude,omitempty"`
 }
 
 type Membership struct {
diff --git a/pkg/lists/controller.go b/pkg/lists/controller.go
index b8f3455..8bca32c 100644
--- a/pkg/lists/controller.go
+++ b/pkg/lists/controller.go
@@ -48,17 +48,6 @@ func (c *AccountListController) Tidy(ctx context.Context, l *v1alpha1.AccountLis
 		accounts[a.Handle] = m
 	}
 
-	for _, m := range l.Members {
-		m.Member = true
-		accounts[m.Account.Handle] = m
-	}
-
-	for _, m := range l.Exclude {
-		m.Member = true
-		m.Member = false
-		accounts[m.Account.Handle] = m
-	}
-
 	for _, m := range l.Items {
 		accounts[m.Account.Handle] = m
 	}
@@ -79,8 +68,6 @@ func (c *AccountListController) Tidy(ctx context.Context, l *v1alpha1.AccountLis
 	l.Items = members
 
 	l.Accounts = nil
-	l.Exclude = nil
-	l.Members = nil
 	return nil
 }
 
diff --git a/pkg/lists/walker.go b/pkg/lists/walker.go
index 9f6728d..9dfa2aa 100644
--- a/pkg/lists/walker.go
+++ b/pkg/lists/walker.go
@@ -76,11 +76,7 @@ func (g *GraphWalker) Reconcile(ctx context.Context, buildSpec *v1alpha1.Communi
 	}
 
 	// Add the list of seen accounts to the account list
-	for _, member := range accountList.Members {
-		seen[member.Account.Handle] = true
-	}
-
-	for _, member := range accountList.Exclude {
+	for _, member := range accountList.Items {
 		seen[member.Account.Handle] = true
 	}
 
@@ -121,8 +117,9 @@ func (g *GraphWalker) getFollowers(ctx context.Context, definition v1alpha1.Comm
 						DID:    f.Did,
 					},
 					Explanation: "The account has no profile description.",
+					Member:      false,
 				}
-				accountList.Exclude = append(accountList.Exclude, member)
+				accountList.Items = append(accountList.Items, member)
 				continue
 			}
 			prompt, err := buildPrompt(definition, *f.Description)
@@ -184,12 +181,10 @@ func (g *GraphWalker) getFollowers(ctx context.Context, definition v1alpha1.Comm
 					DID:    f.Did,
 				},
 				Explanation: output.Explanation,
+				Member:      output.Member,
 			}
-			if output.Member {
-				accountList.Members = append(accountList.Members, member)
-			} else {
-				accountList.Exclude = append(accountList.Exclude, member)
-			}
+
+			accountList.Items = append(accountList.Items, member)
 		}
 
 		if err := g.save(ctx, accountList, outputFile); err != nil {