Use env vars

internal/feeds/refresh.go

@@ -14,7 +14,7 @@ var fp = gofeed.NewParser()
 var feedStore = &FeedStore{}
 
 func Refresh() error {
-	interval := viper.GetInt("refreshTimeoutMinutes")
+	interval := viper.GetInt("REFRESH_TIMEOUT")
 
 	for {
 		fmt.Println("Refreshing feeds...")

internal/feeds/store.go

@@ -10,7 +10,7 @@ import (
 
 func (fs *FeedStore) getDB() *gorm.DB {
 	if fs.db == nil {
-		db, err := gorm.Open(sqlite.Open(viper.GetString("dbPath")), &gorm.Config{
+		db, err := gorm.Open(sqlite.Open(viper.GetString("DB_PATH")), &gorm.Config{
 			Logger: logger.Default.LogMode(logger.Error),
 		})
 		if err != nil {