diff --git a/README.md b/README.md
index 3a3d698..80b604d 100644
--- a/README.md
+++ b/README.md
@@ -16,7 +16,14 @@ Download the rz-pm binary for your system on the [latest release page](https://g
 | **GithubCI**  | [![Go](https://github.com/rizinorg/rz-pm/actions/workflows/go.yml/badge.svg)](https://github.com/rizinorg/rz-pm/actions/workflows/go.yml) |
 
 # Available packages
-The official database is available [here](https://github.com/rizinorg/rz-pm-db).
+
+The official database is available [here](https://github.com/rizinorg/rz-pm-db). You can change the repo by supplying a custom `RZPM_DB_REPO_URL` environment flag like this:
+
+    $ RZPM_DB_REPO_URL=https://github.com/bunnyfoofoo/my-custom-rz-pm-db rz-pm install rz-custom-plugin
+
+Furthermore, to aid with debugging, you can disable auto-updating the `rz-pm-db` upon each command execution by adding `-should-update-db=false` flag, like this:
+
+    $ rz-pm -should-update-db=false install rz-custom-plugin
 
 ## Package example
 
diff --git a/pkg/site.go b/pkg/site.go
index 8f739c0..9c7d301 100644
--- a/pkg/site.go
+++ b/pkg/site.go
@@ -5,6 +5,7 @@ import (
 	"fmt"
 	"io/fs"
 	"io/ioutil"
+	"log"
 	"os"
 	"os/exec"
 	"path/filepath"
@@ -25,7 +26,17 @@ func SiteDir() string {
 	return filepath.Join(xdg.DataHome, "rz-pm", "site")
 }
 
-const RZPM_DB_REPO_URL = "https://github.com/rizinorg/rz-pm-db"
+var RZPM_DB_REPO_URL string
+
+func init() {
+	dbURL := os.Getenv("RZPM_DB_REPO_URL")
+	if dbURL != "" {
+		log.Printf("Using custom rz-pm-db Git repo: %s\n", dbURL)
+		RZPM_DB_REPO_URL = dbURL
+	} else {
+		RZPM_DB_REPO_URL = "https://github.com/rizinorg/rz-pm-db"
+	}
+}
 
 type Site interface {
 	ListAvailablePackages() ([]Package, error)