I'm looking for inspiring success stories of SaaS businesses on Indie Hackers that are generating over $10K in monthly recurring revenue. Navigate to the 'Case Studies Database', apply the '>$10K MRR' and 'SaaS' filters. Then, find the case study for 'Craig Hewitt' and his business 'Castos'. Once on the Castos case study page, identify and state the primary problem Castos solves, one key marketing channel Craig used to grow Castos, and the number of customers Castos had when Craig shared his story.
Navigate to 'https://www.indiehackers.com/'. Open the main menu by clicking the 'Open Menu' button. Click on the 'Case Studies DB' link. On the 'Case Studies Database' page, locate and click on the 'Monthly Revenue' filter (often labeled 'Monthly Revenue Any Amount'). From the dropdown options, select '>$10K MRR'. Locate and click on the 'Business Model' filter (often labeled 'Business Model Anything'). From the dropdown options, select 'SaaS'. Scroll down to find the case study titled 'Starting with a productized service and build...' by 'Craig Hewitt' for 'Castos' and click on it. On the Castos case study page, identify the primary problem Castos solves. Identify one key marketing channel Craig used to grow Castos. Identify the number of customers Castos had when Craig shared his story. Synthesize all identified information into a concise answer.
The agent successfully navigates to the 'Case Studies Database'. The agent successfully applies the '>$10K MRR' filter. The agent successfully applies the 'SaaS' business model filter. The agent successfully navigates to Craig Hewitt's Castos case study page. The agent states that Castos solves the problem of 'podcast hosting and analytics'. The agent states a key marketing channel used, such as 'content marketing' or 'SEO'. The agent states that Castos had '1,000+ customers' when Craig shared his story.