diff --git a/src/NextflowRelease.ts b/src/NextflowRelease.ts
index fed8427..b2bdaee 100644
--- a/src/NextflowRelease.ts
+++ b/src/NextflowRelease.ts
@@ -7,3 +7,23 @@ export type NextflowRelease = {
   binaryURL: string
   allBinaryURL: string
 }
+
+/**
+ * Gets the download URL of a Nextflow binary
+ * @param release A "release" data struct from OctoKit
+ * @param get_all Whether to return the url for the "all" variant of Nextflow
+ * @returns The URL of the Nextflow binary
+ */
+export function nextflow_bin_url(release: object, get_all: boolean): string {
+  const release_assets = release["assets"]
+  const all_asset = release_assets.filter((a: object) => {
+    return a["browser_download_url"].endsWith("-all")
+  })[0]
+  const regular_asset = release_assets.filter((a: object) => {
+    return a["name"] === "nextflow"
+  })[0]
+
+  const dl_asset = get_all ? all_asset : regular_asset
+
+  return dl_asset.browser_download_url
+}
diff --git a/src/functions.ts b/src/functions.ts
index 4f0fbda..51af3b0 100644
--- a/src/functions.ts
+++ b/src/functions.ts
@@ -72,20 +72,6 @@ export async function release_data(
   return matching_releases[0]
 }
 
-export function nextflow_bin_url(release: object, get_all: boolean): string {
-  const release_assets = release["assets"]
-  const all_asset = release_assets.filter((a: object) => {
-    return a["browser_download_url"].endsWith("-all")
-  })[0]
-  const regular_asset = release_assets.filter((a: object) => {
-    return a["name"] === "nextflow"
-  })[0]
-
-  const dl_asset = get_all ? all_asset : regular_asset
-
-  return dl_asset.browser_download_url
-}
-
 export async function install_nextflow(
   url: string,
   version: string