Hello, Joe!

.github/workflows/test.yml

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+name: test
+
+on:
+  push:
+    branches:
+      - master
+      - main
+  pull_request:
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: erlef/setup-beam@v1
+        with:
+          otp-version: "27.1.2"
+          gleam-version: "1.6.1"
+          rebar3-version: "3"
+          # elixir-version: "1.15.4"
+      - run: gleam deps download
+      - run: gleam test --target erlang
+      - run: gleam test --target javascript
+      - run: gleam format --check src test

.gitignore

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+*.beam
+*.ez
+/build
+erl_crash.dump

CHANGELOG.md

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+# Changelog
+
+## v1.0.0 - 2024-11-20
+
+- Initial release! Extracted from `gleam_stdlib` v0.43.0

README.md

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+# Yielder
+
+Unfold values on-demand from a function.
+
+[![Package Version](https://img.shields.io/hexpm/v/gleam_yielder)](https://hex.pm/packages/gleam_yielder)
+[![Hex Docs](https://img.shields.io/badge/hex-docs-ffaff3)](https://hexdocs.pm/gleam_yielder/)
+
+```sh
+gleam add gleam_yielder@1
+```
+```gleam
+import gleam/yielder
+
+pub fn main() {
+  yielder.unfold(2, fn(acc) { yielder.Next(acc, acc * 2) })
+  |> yielder.take(5)
+  |> yielder.to_list
+  // -> [2, 4, 8, 16, 32]
+}
+```
+
+Further documentation can be found at <https://hexdocs.pm/gleam_yielder>.

gleam.toml

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+name = "gleam_yielder"
+version = "1.0.0"
+gleam = ">= 0.32.0"
+licences = ["Apache-2.0"]
+description = "Unfold values on-demand from a function"
+
+repository = { type = "github", user = "gleam-lang", repo = "yielder" }
+links = [
+  { title = "Sponsor", href = "https://github.com/sponsors/lpil" },
+]
+
+[dependencies]
+gleam_stdlib = ">= 0.34.0 and < 2.0.0"
+
+[dev-dependencies]
+gleeunit = ">= 1.0.0 and < 2.0.0"

manifest.toml

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+# This file was generated by Gleam
+# You typically do not need to edit this file
+
+packages = [
+  { name = "gleam_stdlib", version = "0.43.0", build_tools = ["gleam"], requirements = [], otp_app = "gleam_stdlib", source = "hex", outer_checksum = "69EF22E78FDCA9097CBE7DF91C05B2A8B5436826D9F66680D879182C0860A747" },
+  { name = "gleeunit", version = "1.2.0", build_tools = ["gleam"], requirements = ["gleam_stdlib"], otp_app = "gleeunit", source = "hex", outer_checksum = "F7A7228925D3EE7D0813C922E062BFD6D7E9310F0BEE585D3A42F3307E3CFD13" },
+]
+
+[requirements]
+gleam_stdlib = { version = ">= 0.34.0 and < 2.0.0" }
+gleeunit = { version = ">= 1.0.0 and < 2.0.0" }