diff --git a/.github/workflows/build_win.yml b/.github/workflows/build.yml
similarity index 54%
rename from .github/workflows/build_win.yml
rename to .github/workflows/build.yml
index 0ef71c1..3454e06 100644
--- a/.github/workflows/build_win.yml
+++ b/.github/workflows/build.yml
@@ -1,4 +1,4 @@
-name: windows-latest
+name: build
 
 concurrency:
   group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
@@ -11,7 +11,32 @@ on:
     branches: [ master ]
 
 jobs:
-  build:
+  ubuntu:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v4
+
+    - name: "Build/Test"
+      run: |
+        curl -fL --retry 3 --retry-delay 2 -o mkn https://github.com/mkn/mkn/releases/download/latest/mkn_nix
+        chmod +x mkn
+        KLOG=3 ./mkn clean build run -dtOp test -a "-std=c++20 -fPIC" -l -pthread
+
+  macos:
+    runs-on: macos-latest
+    steps:
+    - uses: actions/checkout@v4
+
+    - name: "Build/Test"
+      env:
+        MKN_LIB_LINK_LIB: 1
+      run: |
+        set -ex
+        export SSL_DIR=$(dirname $(dirname $(find /opt/homebrew/Cellar/openssl@3 | grep "libssl\.a")))
+        curl -fL --retry 3 --retry-delay 2 -o mkn https://github.com/mkn/mkn/releases/download/latest/mkn_arm_osx && chmod +x mkn
+        KLOG=3 ./mkn clean build run -dtOp test -a "-std=c++20 -fPIC" -b "${SSL_DIR}/include" -B "${SSL_DIR}/lib"
+
+  windows:
     runs-on: windows-latest
     steps:
     - uses: actions/checkout@v4
@@ -34,4 +59,4 @@ jobs:
         bash -c "set -ex; python3 -m pip install wheel -U && python3 -m pip install conan -U && python3 -m conans.conan profile detect"
         bash -c "mkdir -p /c/Users/runneradmin/.conan && cp conan_remotes.json /c/Users/runneradmin/.conan/remotes.json"
         bash -c "curl -Lo mkn.exe https://github.com/mkn/mkn/releases/download/latest/mkn.exe"
-        bash -c 'KLOG=3 ./mkn clean build -dtOp test -a "-EHsc -std:c++17"'
+        bash -c 'KLOG=3 ./mkn clean build -dtOp test -a "-EHsc -std:c++20"'
diff --git a/.github/workflows/build_nix.yml b/.github/workflows/build_nix.yml
deleted file mode 100644
index 20e5e57..0000000
--- a/.github/workflows/build_nix.yml
+++ /dev/null
@@ -1,23 +0,0 @@
-name: ubuntu-latest
-
-concurrency:
-  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
-  cancel-in-progress: true
-
-on:
-  push:
-    branches: [ master ]
-  pull_request:
-    branches: [ master ]
-
-jobs:
-  build:
-    runs-on: ubuntu-latest
-    steps:
-    - uses: actions/checkout@v4
-
-    - name: "Build/Test"
-      run: |
-        curl -fL --retry 3 --retry-delay 2 -o mkn https://github.com/mkn/mkn/releases/download/latest/mkn_nix
-        chmod +x mkn
-        KLOG=3 ./mkn clean build run -dtOp test -a "-std=c++17 -fPIC" -l -pthread
diff --git a/.github/workflows/build_osx.yml b/.github/workflows/build_osx.yml
deleted file mode 100644
index b93b2de..0000000
--- a/.github/workflows/build_osx.yml
+++ /dev/null
@@ -1,26 +0,0 @@
-name: macos-latest
-
-concurrency:
-  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
-  cancel-in-progress: true
-
-on:
-  push:
-    branches: [ master ]
-  pull_request:
-    branches: [ master ]
-
-jobs:
-  build:
-    runs-on: macos-latest
-    steps:
-    - uses: actions/checkout@v4
-
-    - name: "Build/Test"
-      env:
-        MKN_LIB_LINK_LIB: 1
-      run: |
-        set -ex
-        export SSL_DIR=$(dirname $(dirname $(find /opt/homebrew/Cellar/openssl@3 | grep "libssl\.a")))
-        curl -fL --retry 3 --retry-delay 2 -o mkn https://github.com/mkn/mkn/releases/download/latest/mkn_arm_osx && chmod +x mkn
-        KLOG=3 ./mkn clean build run -dtOp test -a "-std=c++17 -fPIC" -b "${SSL_DIR}/include" -B "${SSL_DIR}/lib"
diff --git a/src/any/http/request.cpp b/src/any/http/request.cpp
index 1ef76e6..1ebb2bb 100644
--- a/src/any/http/request.cpp
+++ b/src/any/http/request.cpp
@@ -83,7 +83,7 @@ std::string mkn::ram::http::_1_1GetRequest::toString() const {
   std::stringstream ss;
   ss << method() << " /" << _path;
   if (atts.size() > 0) ss << "?";
-  for (std::pair<std::string, std::string> const& p : atts) ss << p.first << "=" << p.second << "&";
+  for (auto const& p : atts) ss << p.first << "=" << p.second << "&";
   if (atts.size() > 0) ss.seekp(-1, ss.cur);
   ss << " " << version();
   ss << "\r\nHost: " << _host;