btcd
A Bitcoin full-node implementation written in Go.
Developer tools & open source
Public crypto repository written primarily in PHP.
FinAegis/core-banking-prototype-laravel is a public GitHub repository with PHP as its primary reported language. GitHub reports 204 stars and 54 forks at the latest snapshot. Its topics include banking, core-banking, cqrs, ddd, domain-driven-design, event-sourcing. Read the repository documentation, license and current issues before using the software.
Open-source core banking platform — 61 DDD domains with event sourcing, CQRS, and a schema-first GraphQL API. Multi-asset accounts, exchange, lending, compliance, x402/MPP machine payments, and a non-custodial wallet backend. Laravel 12 / PHP 8.4. Reference implementation: the GCU basket currency.
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