try subrouter

src/index.tsx

@@ -10,7 +10,7 @@ import { MantineProvider } from '@mantine/styles'
 import { Box } from '@mantine/core'
 import { theme } from '@/theme'
 
-const MY_FOLDER = '/orionreed.github.io'
+const MY_FOLDER = '/orionreed'
 class SubfolderRouter extends Router {
   render(props: RouterProps, state: any) {
     if (state.url.indexOf(MY_FOLDER) === 0) {
@@ -27,13 +27,13 @@ export function App() {
   return (
     <MantineProvider withGlobalStyles withNormalizeCSS theme={theme}>
       <Box mb="xl">
-        <Router>
+        <SubfolderRouter>
           <Home path="/" />
           <Posts path="/posts" />
           <Post path="/posts/:title" />
           <Stream path="/stream" />
           <NotFound default />
-        </Router>
+        </SubfolderRouter>
       </Box>
     </MantineProvider>
   )