diff --git a/completers/gh_completer/cmd/auth_login.go b/completers/gh_completer/cmd/auth_login.go
index 943991ea88..4bf7d83b85 100644
--- a/completers/gh_completer/cmd/auth_login.go
+++ b/completers/gh_completer/cmd/auth_login.go
@@ -9,14 +9,14 @@ import (
 
 var auth_loginCmd = &cobra.Command{
 	Use:   "login",
-	Short: "Authenticate with a GitHub host",
+	Short: "Log in to a GitHub account",
 	Run:   func(cmd *cobra.Command, args []string) {},
 }
 
 func init() {
 	carapace.Gen(auth_loginCmd).Standalone()
 
-	auth_loginCmd.Flags().StringP("git-protocol", "p", "", "The protocol to use for git operations: {ssh|https}")
+	auth_loginCmd.Flags().StringP("git-protocol", "p", "", "The protocol to use for git operations on this host: {ssh|https}")
 	auth_loginCmd.Flags().StringP("hostname", "h", "", "The hostname of the GitHub instance to authenticate with")
 	auth_loginCmd.Flags().Bool("insecure-storage", false, "Save authentication credentials in plain text instead of credential store")
 	auth_loginCmd.Flags().StringSliceP("scopes", "s", []string{}, "Additional authentication scopes to request")
diff --git a/completers/gh_completer/cmd/auth_logout.go b/completers/gh_completer/cmd/auth_logout.go
index 625c0e03b5..bde36c53ab 100644
--- a/completers/gh_completer/cmd/auth_logout.go
+++ b/completers/gh_completer/cmd/auth_logout.go
@@ -3,12 +3,13 @@ package cmd
 import (
 	"github.com/rsteube/carapace"
 	"github.com/rsteube/carapace-bin/completers/gh_completer/cmd/action"
+	"github.com/rsteube/carapace-bin/pkg/actions/tools/gh"
 	"github.com/spf13/cobra"
 )
 
 var auth_logoutCmd = &cobra.Command{
 	Use:   "logout",
-	Short: "Log out of a GitHub host",
+	Short: "Log out of a GitHub account",
 	Run:   func(cmd *cobra.Command, args []string) {},
 }
 
@@ -16,9 +17,13 @@ func init() {
 	carapace.Gen(auth_logoutCmd).Standalone()
 
 	auth_logoutCmd.Flags().StringP("hostname", "h", "", "The hostname of the GitHub instance to log out of")
+	auth_logoutCmd.Flags().StringP("user", "u", "", "The account to log out of")
 	authCmd.AddCommand(auth_logoutCmd)
 
 	carapace.Gen(auth_logoutCmd).FlagCompletion(carapace.ActionMap{
 		"hostname": action.ActionConfigHosts(),
+		"user": carapace.ActionCallback(func(c carapace.Context) carapace.Action {
+			return gh.ActionConfigUsers(auth_logoutCmd.Flag("hostname").Value.String())
+		}),
 	})
 }
diff --git a/completers/gh_completer/cmd/auth_switch.go b/completers/gh_completer/cmd/auth_switch.go
new file mode 100644
index 0000000000..8f71bc348f
--- /dev/null
+++ b/completers/gh_completer/cmd/auth_switch.go
@@ -0,0 +1,29 @@
+package cmd
+
+import (
+	"github.com/rsteube/carapace"
+	"github.com/rsteube/carapace-bin/completers/gh_completer/cmd/action"
+	"github.com/rsteube/carapace-bin/pkg/actions/tools/gh"
+	"github.com/spf13/cobra"
+)
+
+var auth_switchCmd = &cobra.Command{
+	Use:   "switch",
+	Short: "Switch active GitHub account",
+	Run:   func(cmd *cobra.Command, args []string) {},
+}
+
+func init() {
+	carapace.Gen(auth_switchCmd).Standalone()
+
+	auth_switchCmd.Flags().StringP("hostname", "h", "", "The hostname of the GitHub instance to switch account for")
+	auth_switchCmd.Flags().StringP("user", "u", "", "The account to switch to")
+	authCmd.AddCommand(auth_switchCmd)
+
+	carapace.Gen(auth_switchCmd).FlagCompletion(carapace.ActionMap{
+		"hostname": action.ActionConfigHosts(),
+		"user": carapace.ActionCallback(func(c carapace.Context) carapace.Action {
+			return gh.ActionConfigUsers(auth_switchCmd.Flag("hostname").Value.String())
+		}),
+	})
+}
diff --git a/completers/gh_completer/cmd/auth_token.go b/completers/gh_completer/cmd/auth_token.go
index c6ef96e132..560f3a7ce3 100644
--- a/completers/gh_completer/cmd/auth_token.go
+++ b/completers/gh_completer/cmd/auth_token.go
@@ -3,12 +3,13 @@ package cmd
 import (
 	"github.com/rsteube/carapace"
 	"github.com/rsteube/carapace-bin/completers/gh_completer/cmd/action"
+	"github.com/rsteube/carapace-bin/pkg/actions/tools/gh"
 	"github.com/spf13/cobra"
 )
 
 var auth_tokenCmd = &cobra.Command{
 	Use:   "token",
-	Short: "Print the auth token gh is configured to use",
+	Short: "Print the authentication token gh uses for a hostname and account",
 	Run:   func(cmd *cobra.Command, args []string) {},
 }
 
@@ -17,10 +18,14 @@ func init() {
 
 	auth_tokenCmd.Flags().StringP("hostname", "h", "", "The hostname of the GitHub instance authenticated with")
 	auth_tokenCmd.Flags().Bool("secure-storage", false, "Search only secure credential store for authentication token")
+	auth_tokenCmd.Flags().StringP("user", "u", "", "The account to log out of")
 	auth_tokenCmd.Flag("secure-storage").Hidden = true
 	authCmd.AddCommand(auth_tokenCmd)
 
 	carapace.Gen(auth_tokenCmd).FlagCompletion(carapace.ActionMap{
 		"hostname": action.ActionConfigHosts(),
+		"user": carapace.ActionCallback(func(c carapace.Context) carapace.Action {
+			return gh.ActionConfigUsers(auth_tokenCmd.Flag("hostname").Value.String())
+		}),
 	})
 }
diff --git a/completers/gh_completer/cmd/codespace_create.go b/completers/gh_completer/cmd/codespace_create.go
index d5f840c4b1..b8791d0b09 100644
--- a/completers/gh_completer/cmd/codespace_create.go
+++ b/completers/gh_completer/cmd/codespace_create.go
@@ -21,7 +21,7 @@ func init() {
 	codespace_createCmd.Flags().StringP("branch", "b", "", "repository branch")
 	codespace_createCmd.Flags().Bool("default-permissions", false, "do not prompt to accept additional permissions requested by the codespace")
 	codespace_createCmd.Flags().String("devcontainer-path", "", "path to the devcontainer.json file to use when creating codespace")
-	codespace_createCmd.Flags().StringP("display-name", "d", "", "display name for the codespace")
+	codespace_createCmd.Flags().StringP("display-name", "d", "", "display name for the codespace (48 characters or less)")
 	codespace_createCmd.Flags().String("idle-timeout", "", "allowed inactivity before codespace is stopped, e.g. \"10m\", \"1h\"")
 	codespace_createCmd.Flags().StringP("location", "l", "", "location: {EastUs|SouthEastAsia|WestEurope|WestUs2} (determined automatically if not provided)")
 	codespace_createCmd.Flags().StringP("machine", "m", "", "hardware specifications for the VM")
diff --git a/completers/gh_completer/cmd/repo_sync.go b/completers/gh_completer/cmd/repo_sync.go
index 9b989e25fa..45fb3b1efa 100644
--- a/completers/gh_completer/cmd/repo_sync.go
+++ b/completers/gh_completer/cmd/repo_sync.go
@@ -16,7 +16,7 @@ var repo_syncCmd = &cobra.Command{
 func init() {
 	carapace.Gen(repo_syncCmd).Standalone()
 
-	repo_syncCmd.Flags().StringP("branch", "b", "", "Branch to sync (default: main branch)")
+	repo_syncCmd.Flags().StringP("branch", "b", "", "Branch to sync (default: default branch)")
 	repo_syncCmd.Flags().Bool("force", false, "Hard reset the branch of the destination repository to match the source repository")
 	repo_syncCmd.Flags().StringP("source", "s", "", "Source repository")
 	repoCmd.AddCommand(repo_syncCmd)
diff --git a/completers/gh_completer/cmd/run_list.go b/completers/gh_completer/cmd/run_list.go
index 8afac19709..366805e5b4 100644
--- a/completers/gh_completer/cmd/run_list.go
+++ b/completers/gh_completer/cmd/run_list.go
@@ -19,6 +19,7 @@ func init() {
 	carapace.Gen(run_listCmd).Standalone()
 
 	run_listCmd.Flags().StringP("branch", "b", "", "Filter runs by branch")
+	run_listCmd.Flags().StringP("commit", "c", "", "Filter runs by the `SHA` of the commit")
 	run_listCmd.Flags().String("created", "", "Filter runs by the `date` it was created")
 	run_listCmd.Flags().StringP("event", "e", "", "Filter runs by which `event` triggered the run")
 	run_listCmd.Flags().StringP("jq", "q", "", "Filter JSON output using a jq `expression`")
@@ -31,7 +32,10 @@ func init() {
 	runCmd.AddCommand(run_listCmd)
 
 	carapace.Gen(run_listCmd).FlagCompletion(carapace.ActionMap{
-		"branch":   action.ActionBranches(run_listCmd),
+		"branch": action.ActionBranches(run_listCmd),
+		"commit": carapace.ActionCallback(func(c carapace.Context) carapace.Action {
+			return action.ActionBranchCommits(run_listCmd, run_listCmd.Flag("branch").Value.String())
+		}),
 		"created":  time.ActionDate(),
 		"event":    gh.ActionWorkflowEvents(),
 		"json":     action.ActionRunFields(),
diff --git a/completers/gh_completer/cmd/workflow_run.go b/completers/gh_completer/cmd/workflow_run.go
index 413683d733..c591238c7e 100644
--- a/completers/gh_completer/cmd/workflow_run.go
+++ b/completers/gh_completer/cmd/workflow_run.go
@@ -15,7 +15,7 @@ var workflow_runCmd = &cobra.Command{
 func init() {
 	carapace.Gen(workflow_runCmd).Standalone()
 
-	workflow_runCmd.Flags().StringSliceP("field", "F", []string{}, "Add a string parameter in `key=value` format, respecting @ syntax")
+	workflow_runCmd.Flags().StringSliceP("field", "F", []string{}, "Add a string parameter in `key=value` format, respecting @ syntax (see \"gh help api\").")
 	workflow_runCmd.Flags().Bool("json", false, "Read workflow inputs as JSON via STDIN")
 	workflow_runCmd.Flags().StringSliceP("raw-field", "f", []string{}, "Add a string parameter in `key=value` format")
 	workflow_runCmd.Flags().StringP("ref", "r", "", "The branch or tag name which contains the version of the workflow file you'd like to run")
diff --git a/pkg/actions/tools/gh/config.go b/pkg/actions/tools/gh/config.go
index cb8c457226..abef5d5df5 100644
--- a/pkg/actions/tools/gh/config.go
+++ b/pkg/actions/tools/gh/config.go
@@ -2,36 +2,43 @@ package gh
 
 import (
 	"os"
+	"path/filepath"
 
 	"github.com/rsteube/carapace"
-	"github.com/rsteube/carapace-bin/pkg/actions/tools/gh/config"
-	"github.com/rsteube/carapace/pkg/xdg"
+	"github.com/rsteube/carapace/pkg/traverse"
 	"gopkg.in/yaml.v3"
 )
 
-func userFor(host string) (string, error) {
-	if host == "" {
-		host = "github.com"
-	}
-
-	configDir, err := xdg.UserConfigDir()
-	if err != nil {
-		return "", err
-	}
+type hostConfig map[string]struct {
+	User        string `yaml:"user"`
+	OauthToken  string `yaml:"oauth_token"`
+	GitProtocol string `yaml:"git_protocol"`
+	Users       map[string]struct {
+		OauthToken string `yaml:"oauth_token"`
+	} `yaml:"users"`
+}
 
-	content, err := os.ReadFile(configDir + "/gh/hosts.yml")
-	if err != nil {
-		return "", err
+func configDir(c carapace.Context) string {
+	if v := c.Getenv("GH_CONFIG_DIR"); v != "" {
+		return v
 	}
+	homeDir, _ := traverse.UserHomeDir(c) // TODO handle error
+	return filepath.Join(homeDir, ".config", "gh")
+}
 
-	var hosts map[string]struct {
-		User string
-	}
-	if err := yaml.Unmarshal(content, &hosts); err != nil {
-		return "", err
-	}
+func actionHostConfig(f func(config hostConfig) carapace.Action) carapace.Action {
+	return carapace.ActionCallback(func(c carapace.Context) carapace.Action {
+		content, err := os.ReadFile(configDir(c) + "/hosts.yml")
+		if err != nil {
+			return carapace.ActionMessage(err.Error())
+		}
 
-	return hosts[host].User, nil
+		var config hostConfig
+		if err := yaml.Unmarshal(content, &config); err != nil {
+			return carapace.ActionMessage(err.Error())
+		}
+		return f(config)
+	})
 }
 
 // ActionConfigHosts completes configured hosts
@@ -39,15 +46,30 @@ func userFor(host string) (string, error) {
 //	github.com
 //	another.com
 func ActionConfigHosts() carapace.Action {
-	return carapace.ActionCallback(func(c carapace.Context) carapace.Action {
-		if config, err := config.ParseDefaultConfig(); err != nil {
-			return carapace.ActionMessage("failed to parse DefaultConfig: " + err.Error())
-		} else {
-			if hosts, err := config.Hosts(); err != nil {
-				return carapace.ActionMessage("failed ot loadd hosts: " + err.Error())
-			} else {
-				return carapace.ActionValues(hosts...)
+	return actionHostConfig(func(config hostConfig) carapace.Action {
+		vals := make([]string, 0)
+		for host := range config {
+			vals = append(vals, host)
+		}
+		return carapace.ActionValues(vals...)
+	})
+}
+
+// ActionConfigUsers completes configured users
+//
+//	userA
+//	userB
+func ActionConfigUsers(host string) carapace.Action {
+	return actionHostConfig(func(config hostConfig) carapace.Action {
+		vals := make([]string, 0)
+		for confHost, conf := range config {
+			switch host {
+			case "", confHost:
+				for user := range conf.Users {
+					vals = append(vals, user)
+				}
 			}
 		}
+		return carapace.ActionValues(vals...)
 	})
 }
diff --git a/pkg/actions/tools/gh/graphql.go b/pkg/actions/tools/gh/graphql.go
index 24f13e3d63..ad0ac024a0 100644
--- a/pkg/actions/tools/gh/graphql.go
+++ b/pkg/actions/tools/gh/graphql.go
@@ -9,7 +9,7 @@ import (
 )
 
 func graphQlAction(opts RepoOpts, query string, v interface{}, transform func() carapace.Action) carapace.Action {
-	return carapace.ActionCallback(func(c carapace.Context) carapace.Action {
+	return actionHostConfig(func(config hostConfig) carapace.Action {
 		params := make([]string, 0)
 		if strings.Contains(query, "$owner") {
 			params = append(params, "$owner: String!")
@@ -27,10 +27,11 @@ func graphQlAction(opts RepoOpts, query string, v interface{}, transform func()
 		}
 
 		if opts.Owner == "@me" {
-			var err error
-			if opts.Owner, err = userFor(opts.Host); err != nil {
-				return carapace.ActionMessage(err.Error())
+			conf, ok := config[opts.Host]
+			if !ok {
+				return carapace.ActionMessage("unknown host")
 			}
+			opts.Owner = conf.User
 		}
 
 		return carapace.ActionExecCommand("gh", "api", "--hostname", opts.Host, "--header", "Accept: application/vnd.github.merge-info-preview+json", "graphql", "-F", "owner="+opts.Owner, "-F", "repo="+opts.Name, "-f", fmt.Sprintf("query=query%v {%v}", queryParams, query))(func(output []byte) carapace.Action {