For the Poincaré half-space model in dimension 2, the metric evaluates on the coordinate tangent vectors \(\frac{\partial}{\partial x}, \frac{\partial}{\partial y} \in T_pM\) as \[g_p\!\left(\frac{\partial}{\partial x^i}\bigg|_p,\;\frac{\partial}{\partial x^j}\bigg|_p\right) = \frac{1}{y^2}\,\delta_{ij},\] i.e. the coordinate tangent vectors are orthogonal and each has length \(\frac{1}{y}\) — shrinking to zero as \(p\) approaches the boundary \(y\to 0\), which is what makes the space “infinitely large” near the boundary.
The full source code is available on GitHub: github.com/NickTikhonov/shuo
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Moreover, when modules are properly split by business capabilities we achieve the “Screaming Architecture” (the term coined by Robert C. Martin). It means that it’s easier to understand and navigate the codebase, because its structure guides you through itself (which is not the case when all you see are modules or directories like: “Domain”, “Core”, “Persistence”, “Infrastructure”, etc).
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Normalization strategies:，这一点在搜狗输入法下载中也有详细论述