diff --git a/badges/coverage.svg b/badges/coverage.svg
index 75782e9..20b5b30 100644
--- a/badges/coverage.svg
+++ b/badges/coverage.svg
@@ -1 +1 @@
-<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" width="110" height="20" role="img" aria-label="Coverage: 6.77%"><title>Coverage: 6.77%</title><linearGradient id="s" x2="0" y2="100%"><stop offset="0" stop-color="#bbb" stop-opacity=".1"/><stop offset="1" stop-opacity=".1"/></linearGradient><clipPath id="r"><rect width="110" height="20" rx="3" fill="#fff"/></clipPath><g clip-path="url(#r)"><rect width="63" height="20" fill="#555"/><rect x="63" width="47" height="20" fill="#e05d44"/><rect width="110" height="20" fill="url(#s)"/></g><g fill="#fff" text-anchor="middle" font-family="Verdana,Geneva,DejaVu Sans,sans-serif" text-rendering="geometricPrecision" font-size="110"><text aria-hidden="true" x="325" y="150" fill="#010101" fill-opacity=".3" transform="scale(.1)" textLength="530">Coverage</text><text x="325" y="140" transform="scale(.1)" fill="#fff" textLength="530">Coverage</text><text aria-hidden="true" x="855" y="150" fill="#010101" fill-opacity=".3" transform="scale(.1)" textLength="370">6.77%</text><text x="855" y="140" transform="scale(.1)" fill="#fff" textLength="370">6.77%</text></g></svg>
\ No newline at end of file
+<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" width="110" height="20" role="img" aria-label="Coverage: 6.66%"><title>Coverage: 6.66%</title><linearGradient id="s" x2="0" y2="100%"><stop offset="0" stop-color="#bbb" stop-opacity=".1"/><stop offset="1" stop-opacity=".1"/></linearGradient><clipPath id="r"><rect width="110" height="20" rx="3" fill="#fff"/></clipPath><g clip-path="url(#r)"><rect width="63" height="20" fill="#555"/><rect x="63" width="47" height="20" fill="#e05d44"/><rect width="110" height="20" fill="url(#s)"/></g><g fill="#fff" text-anchor="middle" font-family="Verdana,Geneva,DejaVu Sans,sans-serif" text-rendering="geometricPrecision" font-size="110"><text aria-hidden="true" x="325" y="150" fill="#010101" fill-opacity=".3" transform="scale(.1)" textLength="530">Coverage</text><text x="325" y="140" transform="scale(.1)" fill="#fff" textLength="530">Coverage</text><text aria-hidden="true" x="855" y="150" fill="#010101" fill-opacity=".3" transform="scale(.1)" textLength="370">6.66%</text><text x="855" y="140" transform="scale(.1)" fill="#fff" textLength="370">6.66%</text></g></svg>
\ No newline at end of file
diff --git a/dist/index.js b/dist/index.js
index 4595050..82c1fed 100644
--- a/dist/index.js
+++ b/dist/index.js
@@ -82185,10 +82185,13 @@ const utils = __nccwpck_require__(1608)
 const which = __nccwpck_require__(6143)
 
 async function run() {
-  core.startGroup('Download & Install flox')
-  await utils.getDownloadUrl()
-  await exec.exec('bash', ['-c', utils.SCRIPTS.installFlox])
-  core.endGroup()
+  const nix = await which('nix', { nothrow: true })
+  if (nix === null) {
+    core.startGroup('Download & Install flox')
+    await utils.getDownloadUrl()
+    await exec.exec('bash', ['-c', utils.SCRIPTS.installFlox])
+    core.endGroup()
+  }
 
   core.startGroup('Configure Git')
   utils.exportVariableFromInput('git-user')
diff --git a/src/main.js b/src/main.js
index 2671122..ab6beab 100644
--- a/src/main.js
+++ b/src/main.js
@@ -5,10 +5,13 @@ const utils = require('./utils')
 const which = require('which')
 
 export async function run() {
-  core.startGroup('Download & Install flox')
-  await utils.getDownloadUrl()
-  await exec.exec('bash', ['-c', utils.SCRIPTS.installFlox])
-  core.endGroup()
+  const nix = await which('nix', { nothrow: true })
+  if (nix === null) {
+    core.startGroup('Download & Install flox')
+    await utils.getDownloadUrl()
+    await exec.exec('bash', ['-c', utils.SCRIPTS.installFlox])
+    core.endGroup()
+  }
 
   core.startGroup('Configure Git')
   utils.exportVariableFromInput('git-user')