Years ago, Matt Thrasher and Paul Tinney, the co-owners of Rockwell Brewery, were just neighbors who would crack open a cold one on occasion. Then, they got into home brewing. Next thing they knew, they opened Rockwell Brewery on North East Drive in downtown Frederick in 2017. Now, they’re about to expand to a second location of Rockwell Brewery the first weekend of May, significantly boosting their operation.