devenv-inputs(1)

📦
version 2.4.0 · 2 versions
, in nixpkgs unstable

🎀 devenv-inputs — the glow-up guide 🎀

Hey bestie 💖 so this is devenv-inputs, straight out of the General Commands Manual section, and it's literally just here to Add an input to devenv.yaml. (yes, that's the whole vibe — full docs at https://devenv.sh/inputs/ ✨)

🌸 SYNOPSIS 🌸

devenv inputs [--user-config] [--from] [-o|--override-input]
[-O|--option] [-j|--max-jobs] [-u|--cores] [-s|--system] [-i|--impure]
[--no-impure] [--offline] [--nix-option] [--nix-debugger] [-c|--clean]
[-P|--profile] [--reload] [--no-reload] [--shell] [--eval-cache]
[--no-eval-cache] [--refresh-eval-cache] [--refresh-task-cache]
[--secretspec-provider] [--secretspec-profile] [--trace-to]
[-v|--verbose] [-q|--quiet] [--tui] [--no-tui] [-h|--help] <subcommands>

🦋 DESCRIPTION 🦋

okay so bestie, the whole entire job of this command is: Add an input to devenv.yaml. 💅 That's it. That's the assignment. More at https://devenv.sh/inputs/ 🌈

✨ OPTIONS ✨

  • --user-config <USER_CONFIG> — use this user config file instead of the XDG default. your config, your rules 🫶

💜 INPUT OVERRIDES 💜

  • --from <FROM> — the source for devenv.nix.

Can be either a filesystem path (with the path: prefix) or a flake input reference. no cap, both are valid 💖

Examples:

--from github:cachix/devenv
--from github:cachix/devenv?dir=examples/simple
--from path:/absolute/path/to/project
--from path:./relative/path
  • -o, --override-input <NAME> <URI> — override inputs in devenv.yaml. lowkey the most useful thing here 🔥

Examples:

--override-input nixpkgs github:NixOS/nixpkgs/nixos-unstable
--override-input nixpkgs path:/path/to/local/nixpkgs
  • -O, --option <OPTION:TYPE> <VALUE> — override configuration options with typed values ✨

OPTION must include a type: <attribute>:<type>. Supported types are: string, int, float, bool, path, pkg, pkgs 👑

List types (pkgs) append to existing values by default. Add a ! suffix to replace instead: pkgs! 💅

Examples:

--option languages.rust.channel:string beta
--option services.postgres.enable:bool true
--option languages.python.version:string 3.10
--option packages:pkgs "ncdu git"       (appends to packages)
--option packages:pkgs! "ncdu git"      (replaces all packages)

🔥 NIX OPTIONS 🔥

  • -j, --max-jobs <MAX_JOBS> — max number of Nix builds running concurrently at the same time.

Defaults to 1/4 of available CPU cores (minimum 1). we love a cautious queen 🧚

  • -u, --cores <CORES> — how many CPU cores each build gets.

Defaults to available cores divided by max-jobs (minimum 1).

  • -s, --system <SYSTEM> — override the target system.

Defaults to the host system (e.g. aarch64-darwin, x86_64-linux).

  • -i, --impure — relax the hermeticity of the environment 🙈 (yes it's a word, yes it's chaotic)
  • --no-impure — force a hermetic environment, overriding config. boundaries, set 💅
  • --offline — disable substituters and consider all previously downloaded files up-to-date. airplane mode but make it nix ✈️
  • --nix-option <NAME> <VALUE> — pass additional options to nix commands.

These options get passed directly to Nix using the --option flag. See man nix.conf for the full list of available options 📖

Examples:

--nix-option sandbox false
--nix-option keep-outputs true
--nix-option system x86_64-darwin
  • --nix-debugger — enter the Nix debugger on failure. main character debugging energy 😭

🐚 SHELL OPTIONS 🐚

  • -c, --clean [<CLEAN>...] — ignore existing environment variables when entering the shell. pass a list of comma-separated environment variables to let through 🫶 (a little VIP list, if you will)
  • -P, --profile <PROFILES> — activate one or more profiles defined in devenv.nix.

Profiles let you define different configurations that can be merged with your base configuration. it's giving layering, it's giving outfit stacking 👗

See https://devenv.sh/profiles for more information.

Examples:

--profile python-3.14
--profile backend --profile fast-startup
  • --reload — enable auto-reload when config files change (default). she's always watching 👀
  • --no-reload — disable auto-reload when config files change.
  • --shell <SHELL_TYPE> — the shell to use for interactive sessions (bash, zsh, fish, nu).

Possible values:

  • bash
  • zsh
  • fish
  • nu

⭐ CACHE OPTIONS ⭐

  • --eval-cache — enable caching of Nix evaluation results (default). save that work, bestie 💾
  • --no-eval-cache — disable caching of Nix evaluation results.
  • --refresh-eval-cache — force a refresh of the Nix evaluation cache. out with the old 🔄
  • --refresh-task-cache — force a refresh of the task cache.

🍓 SECRETSPEC OPTIONS 🍓

  • --secretspec-provider <SECRETSPEC_PROVIDER> — override the secretspec provider 🤫
  • --secretspec-profile <SECRETSPEC_PROFILE> — override the secretspec profile 🤫

🌈 TRACING OPTIONS 🌈

  • --trace-to <TRACE_TO> — enable tracing and set the output destination(s). can be repeated for multiple outputs 👑

Syntax: [format:]destination

Examples:

--trace-to stderr                              # json to stderr
--trace-to pretty:stderr                       # pretty format to stderr
--trace-to json:file:/tmp/trace.json           # JSON to file
--trace-to otlp-grpc                           # OTLP gRPC to default endpoint
--trace-to otlp-grpc:http://collector:4317     # OTLP gRPC to custom endpoint

Multiple outputs:

--trace-to pretty:stderr --trace-to json:file:/tmp/t.json

Destinations: stdout, stderr, file:<path>, http(s)://<host>:<port>. Formats: json (default), pretty, full, otlp-grpc, otlp-http-protobuf, otlp-http-json ✨

When the format is omitted, it defaults to json. Tracing is disabled by default 💀

[env: DEVENV_TRACE_TO=] (comma-separated) [env: DEVENV_TRACE_DEFAULT_TO=] (comma-separated, used only when no explicit tracing is configured; set to empty string to suppress) 🧚

💖 GLOBAL OPTIONS 💖

  • -v, --verbose — enable additional debug logs. she's nosy and we love her 🕵️
  • -q, --quiet — silence all logs 🤐
  • --tui <TUI> — enable the interactive terminal interface (default when interactive).

Possible values:

  • true
  • false
  • --no-tui — disable the interactive terminal interface. goodbye pretty interface 😭
  • -h, --help — print help (see a summary with -h). yes, there's a summary version, iykyk 👑

👑 SUBCOMMANDS 👑

🌟 devenv-inputs-add(1)

Add an input to devenv.yaml. the whole point of the whole thing fr fr 💅

okay that's the whole page bestie, hope it slayed 🫶 — this lil doc comes from the inputs source and is filed under devenv-inputs(1) in the General Commands Manual. now go add those inputs ✨💖🎀

📦 where this page comes from