diff --git a/README.md b/README.md
index 9606711..0622645 100644
--- a/README.md
+++ b/README.md
@@ -330,6 +330,8 @@ Commands:
   supported-system remove             remove a supported system
   checksums add                       add checksums to the config file
   checksums prune                     remove unnecessary checksums from the config file
+  checksums sync                      add checksums to the config file and remove unnecessary
+                                      checksums
   init                                create an empty config file
   cache clear                         clear the cache
   version                             show bindown version
diff --git a/cmd/bindown/checksums.go b/cmd/bindown/checksums.go
index 2b2ec5d..f3fa301 100644
--- a/cmd/bindown/checksums.go
+++ b/cmd/bindown/checksums.go
@@ -7,6 +7,7 @@ import (
 type checksumsCmd struct {
 	Add   addChecksumsCmd   `kong:"cmd,help=${add_checksums_help}"`
 	Prune pruneChecksumsCmd `kong:"cmd,help=${prune_checksums_help}"`
+	Sync  syncChecksumsCmd  `kong:"cmd,help=${sync_checksums_help}"`
 }
 
 type addChecksumsCmd struct {
@@ -39,3 +40,21 @@ func (d *pruneChecksumsCmd) Run(ctx *runContext) error {
 	}
 	return config.WriteFile(ctx.rootCmd.JSONConfig)
 }
+
+type syncChecksumsCmd struct{}
+
+func (d *syncChecksumsCmd) Run(ctx *runContext) error {
+	config, err := loadConfigFile(ctx, true)
+	if err != nil {
+		return err
+	}
+	err = config.PruneChecksums()
+	if err != nil {
+		return err
+	}
+	err = config.AddChecksums(nil, nil)
+	if err != nil {
+		return err
+	}
+	return config.WriteFile(ctx.rootCmd.JSONConfig)
+}
diff --git a/cmd/bindown/cli.go b/cmd/bindown/cli.go
index 97f19ad..31928ce 100644
--- a/cmd/bindown/cli.go
+++ b/cmd/bindown/cli.go
@@ -21,6 +21,7 @@ var kongVars = kong.Vars{
 	"systems_help":                    `target systems in the format of <os>/<architecture>`,
 	"add_checksums_help":              `add checksums to the config file`,
 	"prune_checksums_help":            `remove unnecessary checksums from the config file`,
+	"sync_checksums_help":             `add checksums to the config file and remove unnecessary checksums`,
 	"config_format_help":              `formats the config file`,
 	"config_validate_help":            `validate that installs work`,
 	"config_install_completions_help": `install shell completions`,
diff --git a/docs/clihelp.txt b/docs/clihelp.txt
index 0c0af61..186dc68 100644
--- a/docs/clihelp.txt
+++ b/docs/clihelp.txt
@@ -35,6 +35,8 @@ Commands:
   supported-system remove             remove a supported system
   checksums add                       add checksums to the config file
   checksums prune                     remove unnecessary checksums from the config file
+  checksums sync                      add checksums to the config file and remove unnecessary
+                                      checksums
   init                                create an empty config file
   cache clear                         clear the cache
   version                             show bindown version
diff --git a/script/release b/script/release
index c2535a7..e394ad0 100755
--- a/script/release
+++ b/script/release
@@ -63,13 +63,17 @@ else
   fi
 fi
 
+# pre-build so there isn't such a long time between creating the release and adding the assets
+if [ -f ".goreleaser.yaml" ]; then
+  script/bindown -q install goreleaser
+  bin/goreleaser release --snapshot --clean
+fi
+
 bin/gh release create "v$NEXT_VERSION" -t "v$NEXT_VERSION" --generate-notes
 
 # If there's no .goreleaser.yaml, there's nothing left to do.
 [ -f ".goreleaser.yaml" ] || exit 0
 
+# now build for real
 git fetch --tags
-
-script/bindown -q install goreleaser
-
 bin/goreleaser release --clean