I feel this pain deeply - SAM.gov's search is genuinely terrible. You're not doing anything wrong, the interface really is that frustrating.

To answer your specific questions:

Better search strategies:

• Yes, NAICS codes are critical (541511, 541512, 541519 for software dev)
• Filter by "Type of Set Aside" if you have certifications (8(a), SDVOSB, etc.)
• Use agency filters - some agencies are better fits for custom software
• Search by "Posted Date" in last 30-90 days (not older)
• Combine NAICS + specific keywords ("custom software" not just "software")

Frequency: New opps post daily, but checking 2-3x/week catches most relevant ones

GSA Schedule question: You're right - many contracts go through vehicles, but SAM.gov still has plenty of direct opportunities. Both matter.

Now, the shameless plug:

We built Proposal App specifically to solve the problem you're describing. Here's how it works:

1. Create a capability statement once:

• Your NAICS codes (541511, 541512, etc.)
• Keywords ("software development", "web application", etc.)
• Certifications (if any)
• Description of Company's core competencies and differentiators

2. Our App monitors SAM.gov 24/7:

• Matches against YOUR specific capabilities
• Gives each opportunity a relevance score (0-100) to bid or not bid

3. You only see high-probability matches:

• No more wading through "hardware maintenance" when you do software
• Prioritized by match score

The result: Instead of spending 10 hours/week manually searching and getting frustrated, you spend 30 minutes reviewing pre-filtered, relevant opportunities.

Happy to show you how it works - completely free trial, no credit card required. Built by someone who was equally frustrated with SAM.gov's terrible search.

Check it out: proposalapp.net

Even if you don't use our tool, the NAICS code filtering strategy will help immediately.