implemented start server

internal/rendering/diyhrt.go

@@ -0,0 +1,28 @@
+package rendering
+
+import (
+	"maps"
+	"slices"
+
+	"gitea.elara.ws/Hazel/transfem-startpage/internal/diyhrt"
+)
+
+func (c *Config) LoadDiyHrt(listings []diyhrt.Listing) {
+	existingStores := make(map[int]diyhrt.Store)
+
+	for _, listing := range listings {
+		existingStores[listing.Store.Id] = listing.Store
+	}
+
+	c.Template.Listings = c.DiyHrt.ListingFilter.Filter(listings)
+	c.Template.Stores = c.DiyHrt.StoreFilter.Filter(slices.Collect(maps.Values(existingStores)))
+}
+
+func (c *Config) FetchDiyHrt() error {
+	l, err := diyhrt.GetListings(c.DiyHrt.ApiKey)
+	if err != nil {
+		return err
+	}
+	c.LoadDiyHrt(l)
+	return nil
+}