Nix flake templates for easy dev environments

To initialize (where ${ENV} is listed in the table below):

nix flake init --template github:the-nix-way/dev-templates#${ENV}

Here's an example (for the rust template):

# Initialize in the current project
nix flake init --template github:the-nix-way/dev-templates#rust

# Create a new project
nix flake new --template github:the-nix-way/dev-templates#rust ${NEW_PROJECT_DIRECTORY}

How to use the templates

Once your preferred template has been initialized, you can use the provided shell in two ways:

1. If you have nix-direnv installed, you can initialize the environment by running direnv allow.
2. If you don't have nix-direnv installed, you can run nix develop to open up the Nix-defined shell.

Available templates

Language/framework/tool	Template
Cue	cue
Dhall	dhall
Elixir	elixir
Elm	elm
Gleam	gleam
Go 1.17	go1_17
Go 1.18	go1_18
Hashicorp tools	hashi
Java	java
Kotlin	kotlin
Nickel	nickel
Nim	nim
Nix	nix
Node.js	node
Open Policy Agent	opa
Protobuf	protobuf
Ruby	ruby
Rust	rust
Scala	scala
Zig	zig

Template contents

The sections below list what each template includes. In all cases, you're free to add and remove packages as you see fit; the templates are just boilerplate.

cue

• Cue 0.4.3
• nix-cue

dhall

• Dhall 1.40.2
• dhall-bash
• dhall-csv (Linux only)
• dhall-docs
• dhall-json
• dhall-lsp-server
• dhall-nix
• dhall-nixpkgs
• dhall-openapi
• dhall-text (Linux only)
• dhall-toml
• dhall-yaml

elixir

• Elixir 1.13.4, including mix and IEx
• Node.js 18.7.0 (largely for Phoenix projects)

elm

• Elm 0.19.1
• elm2nix 0.2.1

gleam

• Gleam 0.22.1

go1.17

• Go 1.17
• Standard Go tools (goimports, godoc, and others)
• golangci-lint

go1.18

• Go 1.18
• Standard Go tools (goimports, godoc, and others)
• golangci-lint

hashi

• Terraform 1.2.6
• Packer 1.8.2
• Nomad 1.2.9
• nomad-autoscaler 0.3.6-dev
• nomad-pack 0.0.1-techpreview.3
• levant 0.3.1
• damon
• Terragrunt 0.37.0

haskell

• GHC 9.0.2
• cabal 3.6.2.0

java

• Java 17.0.3
• Maven 3.8.5
• Gradle 7.5
• Ant 1.10.11

kotlin

• Kotlin 1.7.10-release-333
• Gradle 7.5

nickel

• Nickel 0.1.0

nim

• Nim 1.6.6
• nimble 0.13.1

nix

• Cachix
• dhall-to-nix 1.1.23
• lorri
• niv
• nixfmt
• statix
• vulnix

node

• Node.js 18.7.0
• pnpm 7.3.0
• Yarn 1.22.19

opa

• Open Policy Agent 0.43.0
• [Conftest] 0.33.2

protobuf

• The Buf CLI 1.7.0
• protoc 3.19.4

python

• Python 3.11.0b4
• pip
• Virtualenv
• mach-nix

ruby

• Ruby 3.1.2p20, plus the standard Ruby tools (bundle, gem, etc.)

rust

• Rust, including cargo, Clippy, and the other standard tools. The Rust version is determined as follows, in order:

  • From the rust-toolchain.toml file if present
  • From the rust-toolchain file if present
  • Version 1.6.2 if neither is present

• [rust-analyzer] 2022-07-11

• cargo-audit 0.17.0

• cargo-deny 0.12.1

• cross 0.2.4

scala

• Scala 3.1.0 (Java 17.0.3)
• sbt 1.6.2

zig

• Zig 0.9.1

Code organization

All of the templates have only the root flake as a flake input. That root flake provides a common revision of Nixpkgs and flake-utils to all the templates.