# Guppy for H-Series

`hugr-qir` is aimed at Guppy programs that compile through HUGR and then target Quantinuum's H-Series systems via QIR.

That workflow is already usable today, but it supports only a subset of Guppy. This section summarizes the current limitations to keep in mind when writing programs for H-Series targets.

- Start with the [Support matrix](support-matrix.md) for a quick feature-level overview.
- Use [Collections and structs](collections-and-structs.md) when you need the current rules around arrays, tuples, and structs.
- Browse [Guppy feature examples](guppy-features/index.md) for paired supported examples and unsupported counterexamples from the repository.

```{toctree}
:maxdepth: 1

support-matrix
collections-and-structs
guppy-features/index
```