From 6500f755374cae525cf6e2e7f54ab38b980834db Mon Sep 17 00:00:00 2001
From: GitHub Actions <wold@afomi.com>
Date: Sun, 12 Apr 2026 22:33:43 -0700
Subject: [PATCH 1/4] use ~c for charlists

---
 lib/b58.ex | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/lib/b58.ex b/lib/b58.ex
index 915fdbd..c99a20c 100644
--- a/lib/b58.ex
+++ b/lib/b58.ex
@@ -161,9 +161,9 @@ defmodule B58 do
   """
 
   # note that each of these alphabets is a charlist, not a binary!
-  b58_btc_alphabet = '123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz'
-  b58_flickr_alphabet = '123456789abcdefghijkmnopqrstuvwxyzABCDEFGHJKLMNPQRSTUVWXYZ'
-  b58_ripple_alphabet = 'rpshnaf39wBUDNEGHJKLM4PQRST7VWXYZ2bcdeCg65jkm8oFqi1tuvAxyz'
+  b58_btc_alphabet = ~c"123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz"
+  b58_flickr_alphabet = ~c"123456789abcdefghijkmnopqrstuvwxyzABCDEFGHJKLMNPQRSTUVWXYZ"
+  b58_ripple_alphabet = ~c"rpshnaf39wBUDNEGHJKLM4PQRST7VWXYZ2bcdeCg65jkm8oFqi1tuvAxyz"
 
   # you can add more alphabets here. alphabets are kept in a specific order here intentionally.
   alphabet_meta = [

From 36a26e9b37509d0587e7ff67a44c587e2e77e20a Mon Sep 17 00:00:00 2001
From: GitHub Actions <wold@afomi.com>
Date: Sun, 12 Apr 2026 22:35:02 -0700
Subject: [PATCH 2/4] update mix deps

---
 mix.lock | 18 +++++++++---------
 1 file changed, 9 insertions(+), 9 deletions(-)

diff --git a/mix.lock b/mix.lock
index f8d31d5..9cd58db 100644
--- a/mix.lock
+++ b/mix.lock
@@ -1,11 +1,11 @@
 %{
-  "benchee": {:hex, :benchee, "0.13.2", "30cd4ff5f593fdd218a9b26f3c24d580274f297d88ad43383afe525b1543b165", [:mix], [{:deep_merge, "~> 0.1", [hex: :deep_merge, repo: "hexpm", optional: false]}], "hexpm"},
-  "deep_merge": {:hex, :deep_merge, "0.2.0", "c1050fa2edf4848b9f556fba1b75afc66608a4219659e3311d9c9427b5b680b3", [:mix], [], "hexpm"},
-  "dialyxir": {:hex, :dialyxir, "1.0.0-rc.4", "71b42f5ee1b7628f3e3a6565f4617dfb02d127a0499ab3e72750455e986df001", [:mix], [{:erlex, "~> 0.1", [hex: :erlex, repo: "hexpm", optional: false]}], "hexpm"},
-  "earmark": {:hex, :earmark, "1.2.6", "b6da42b3831458d3ecc57314dff3051b080b9b2be88c2e5aa41cd642a5b044ed", [:mix], [], "hexpm"},
-  "erlex": {:hex, :erlex, "0.1.5", "fca8568751216266b343e182c9f494654e93c8adce3a0189c86ea45b632e8c55", [:mix], [], "hexpm"},
-  "ex_doc": {:hex, :ex_doc, "0.19.1", "519bb9c19526ca51d326c060cb1778d4a9056b190086a8c6c115828eaccea6cf", [:mix], [{:earmark, "~> 1.1", [hex: :earmark, repo: "hexpm", optional: false]}, {:makeup_elixir, "~> 0.7", [hex: :makeup_elixir, repo: "hexpm", optional: false]}], "hexpm"},
-  "makeup": {:hex, :makeup, "0.5.5", "9e08dfc45280c5684d771ad58159f718a7b5788596099bdfb0284597d368a882", [:mix], [{:nimble_parsec, "~> 0.4", [hex: :nimble_parsec, repo: "hexpm", optional: false]}], "hexpm"},
-  "makeup_elixir": {:hex, :makeup_elixir, "0.10.0", "0f09c2ddf352887a956d84f8f7e702111122ca32fbbc84c2f0569b8b65cbf7fa", [:mix], [{:makeup, "~> 0.5.5", [hex: :makeup, repo: "hexpm", optional: false]}], "hexpm"},
-  "nimble_parsec": {:hex, :nimble_parsec, "0.4.0", "ee261bb53214943679422be70f1658fff573c5d0b0a1ecd0f18738944f818efe", [:mix], [], "hexpm"},
+  "benchee": {:hex, :benchee, "0.13.2", "30cd4ff5f593fdd218a9b26f3c24d580274f297d88ad43383afe525b1543b165", [:mix], [{:deep_merge, "~> 0.1", [hex: :deep_merge, repo: "hexpm", optional: false]}], "hexpm", "d8b3f1720073413c36a21e56a1d1112a4d67a9ad0ec900437efed08b39e515b2"},
+  "deep_merge": {:hex, :deep_merge, "0.2.0", "c1050fa2edf4848b9f556fba1b75afc66608a4219659e3311d9c9427b5b680b3", [:mix], [], "hexpm", "e3bf435a54ed27b0ba3a01eb117ae017988804e136edcbe8a6a14c310daa966e"},
+  "dialyxir": {:hex, :dialyxir, "1.0.0-rc.4", "71b42f5ee1b7628f3e3a6565f4617dfb02d127a0499ab3e72750455e986df001", [:mix], [{:erlex, "~> 0.1", [hex: :erlex, repo: "hexpm", optional: false]}], "hexpm", "4bba10c6f267a0dd127d687d1295f6a11af6a7f160cc0e261c46f1962a98d7d8"},
+  "earmark": {:hex, :earmark, "1.2.6", "b6da42b3831458d3ecc57314dff3051b080b9b2be88c2e5aa41cd642a5b044ed", [:mix], [], "hexpm", "b42a23e9bd92d65d16db2f75553982e58519054095356a418bb8320bbacb58b1"},
+  "erlex": {:hex, :erlex, "0.1.5", "fca8568751216266b343e182c9f494654e93c8adce3a0189c86ea45b632e8c55", [:mix], [], "hexpm", "a6f0cbe715c4eb70027a7219bcf0d7c50560c311a02b1432e05b606975c52f1e"},
+  "ex_doc": {:hex, :ex_doc, "0.19.1", "519bb9c19526ca51d326c060cb1778d4a9056b190086a8c6c115828eaccea6cf", [:mix], [{:earmark, "~> 1.1", [hex: :earmark, repo: "hexpm", optional: false]}, {:makeup_elixir, "~> 0.7", [hex: :makeup_elixir, repo: "hexpm", optional: false]}], "hexpm", "dc87f778d8260da0189a622f62790f6202af72f2f3dee6e78d91a18dd2fcd137"},
+  "makeup": {:hex, :makeup, "0.5.5", "9e08dfc45280c5684d771ad58159f718a7b5788596099bdfb0284597d368a882", [:mix], [{:nimble_parsec, "~> 0.4", [hex: :nimble_parsec, repo: "hexpm", optional: false]}], "hexpm", "d7152ff93f2eac07905f510dfa03397134345ba4673a00fbf7119bab98632940"},
+  "makeup_elixir": {:hex, :makeup_elixir, "0.10.0", "0f09c2ddf352887a956d84f8f7e702111122ca32fbbc84c2f0569b8b65cbf7fa", [:mix], [{:makeup, "~> 0.5.5", [hex: :makeup, repo: "hexpm", optional: false]}], "hexpm", "4a36dd2d0d5c5f98d95b3f410d7071cd661d5af310472229dd0e92161f168a44"},
+  "nimble_parsec": {:hex, :nimble_parsec, "0.4.0", "ee261bb53214943679422be70f1658fff573c5d0b0a1ecd0f18738944f818efe", [:mix], [], "hexpm", "ebb595e19456a72786db6dcd370d320350cb624f0b6203fcc7e23161d49b0ffb"},
 }

From f8dcb27b459a111adb8e9b71547d9175676a2084 Mon Sep 17 00:00:00 2001
From: GitHub Actions <wold@afomi.com>
Date: Sun, 12 Apr 2026 22:43:33 -0700
Subject: [PATCH 3/4] update to elixir 1.15 min

---
 mix.exs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mix.exs b/mix.exs
index fd239ca..09e497a 100644
--- a/mix.exs
+++ b/mix.exs
@@ -8,7 +8,7 @@ defmodule B58.MixProject do
     [
       app: :basefiftyeight,
       version: @version,
-      elixir: ">= 1.6.0",
+      elixir: "~> 1.15",
       start_permanent: Mix.env() == :prod,
       deps: deps(),
 

From 28813bb732db1d593aed5e931e3a85cbbde51765 Mon Sep 17 00:00:00 2001
From: GitHub Actions <wold@afomi.com>
Date: Sun, 12 Apr 2026 22:46:01 -0700
Subject: [PATCH 4/4] run tests

---
 .github/workflows/test.yml | 33 +++++++++++++++++++++++++++++++++
 1 file changed, 33 insertions(+)
 create mode 100644 .github/workflows/test.yml

diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
new file mode 100644
index 0000000..e0a9588
--- /dev/null
+++ b/.github/workflows/test.yml
@@ -0,0 +1,33 @@
+name: test
+
+on:
+  push:
+    branches: [master]
+  pull_request:
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          - elixir: "1.15"
+            otp: "26"
+          - elixir: "1.17"
+            otp: "27"
+    steps:
+      - uses: actions/checkout@v4
+      - uses: erlef/setup-beam@v1
+        with:
+          elixir-version: ${{ matrix.elixir }}
+          otp-version: ${{ matrix.otp }}
+      - uses: actions/cache@v4
+        with:
+          path: |
+            deps
+            _build
+          key: ${{ runner.os }}-mix-${{ matrix.elixir }}-${{ matrix.otp }}-${{ hashFiles('**/mix.lock') }}
+          restore-keys: ${{ runner.os }}-mix-${{ matrix.elixir }}-${{ matrix.otp }}-
+      - run: mix deps.get
+      - run: mix test