# Nickel configuration language

Hacker Approved page: https://hackerapproved.com/p/nickel/

6 people recommended Nickel configuration language in Hacker News comments, 2 had mixed feelings and none criticized it, November 2025 to October 2026. It was recommended in 4 of 12 months, in 6 threads. It does not meet the Hacker Approved badge rule.

**Verdict:** A typed configuration language that people find a clear improvement over XML-based alternatives, with sophisticated typing and transformation features.

Summary written by Claude from 6 comments.

## Why people recommend it

- Seen as a good, interesting language (2 comments in the sample): "nickel as language seems good alternative for nix btw." ([source](https://news.ycombinator.com/item?id=50174953)) "I think it's a really interesting language." ([source](https://news.ycombinator.com/item?id=49002105))

## Other configuration languages people recommend

- [CUE](https://hackerapproved.com/p/cue/): 23 recommend, 5 mixed, 7 criticize
- [TOML](https://hackerapproved.com/p/toml/): 15 recommend, 4 mixed, 13 criticize
- [Jsonnet](https://hackerapproved.com/p/jsonnet/): 12 recommend, 0 mixed, 3 criticize
- [HCL](https://hackerapproved.com/p/hcl/): 8 recommend, 2 mixed, 14 criticize

## The badge

A product earns the Hacker Approved badge when at least 10 people recommend it, recommenders outnumber critics at least 2 to 1 (mixed feelings count toward neither side), it was recommended in at least 4 of the 12 months and in at least 5 different threads, and no single thread supplies more than half of the people who recommend it. Health and money products are never badged.

## Cite as

Hacker Approved, "Nickel configuration language", https://hackerapproved.com/p/nickel/ (6 recommend, 2 mixed, 0 criticize; Hacker News comments, November 2025 to October 2026).

Counts updated 2 Nov 2026, with data through October 31, 2026.