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Ship Notes · SN #12·15 Mar
Building SaaS that scales
Some SaaS decisions are nearly impossible to reverse. Two notes on the ones worth getting right on day one.
1. Decide tenancy on day one
How you separate customers — shared tables, separate schemas, or separate databases — is one of the hardest things to change later. Choose deliberately based on isolation and compliance needs, not by accident.
2. Contain the noisy neighbor
One heavy customer shouldn't be able to slow everyone else down. Rate-limit, set quotas, and watch per-tenant usage so a single account can't quietly degrade the whole platform.
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