Blog
All articles. All pillars. All authors.
#102 -- Guards: Declarative Security for Routes
How FLIN's guard system provides declarative, composable access control for routes -- auth, roles, rate limiting, CSRF, IP whitelists, and time-based access in single-line declarations.
#126 -- File Storage With 4 Backends
How FLIN provides unified file storage across local filesystem, Amazon S3, Cloudflare R2, and Google Cloud Storage -- all with zero configuration.
#115 -- Custom Guards and Security Middleware
How FLIN developers create custom guards and security middleware for application-specific access control -- verified email guards, subscription checks, IP restrictions, and audit logging.
#129 -- Download Grants and Access Keys
How FLIN secures file access with time-limited download grants and scoped access keys.
#130 -- Text Chunking Strategies
How FLIN splits documents into semantically meaningful chunks for embedding and retrieval.
#132 -- Extracting Text From CSV, XLSX, RTF, and XML
How FLIN extracts searchable text from CSV, XLSX, RTF, and XML files with built-in parsers.
Credits, FCFA, and 6 African Payment Gateways
USD-cent pricing, 13 currencies, Orange Money and M-Pesa, 3 payment gateways, webhook-driven confirmation, and a background poller. Monetizing an African SaaS.
#020 -- The Complete Compilation Pipeline, End to End
FLIN's complete compilation pipeline: six phases from source code to running application, explained end to end.
#037 -- Destructuring Everywhere
How we implemented destructuring in FLIN -- array, entity, and nested destructuring with rest patterns, default values, and the stub-first approach that kept the compiler healthy.
#077 -- Introspection and Reflection at Runtime
How FLIN's introspection system lets programs examine their own types, fields, and structures at runtime -- enabling dynamic forms, serialization, and debugging without sacrificing type safety.
#112 -- WhatsApp OTP Authentication for Africa
How FLIN provides built-in WhatsApp OTP authentication -- the phone-first auth method designed for African markets where WhatsApp is the primary communication platform.
#106 -- Security by Design: OWASP Top 10 in the Language
How FLIN addresses all OWASP Top 10 vulnerabilities at the language level -- not through libraries, not through configuration, but through design decisions that make insecure code impossible to write.