From ca35b839b1d7c7a4c9dd9339694e407b9c6db339 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Andr=C3=A9s=20Riedemann?=
 <38795484+longemen3000@users.noreply.github.com>
Date: Wed, 8 Jul 2026 19:32:49 -0400
Subject: [PATCH 01/27] add dev test

---
 .github/workflows/test_dev.yml                | 51 +++++++++++
 Project.toml                                  |  4 +-
 src/CoolProp.jl                               | 14 ++-
 test/CoolPropDevLoader/Project.toml           | 18 ++++
 .../src/CoolPropDevLoader.jl                  | 90 +++++++++++++++++++
 5 files changed, 175 insertions(+), 2 deletions(-)
 create mode 100644 .github/workflows/test_dev.yml
 create mode 100644 test/CoolPropDevLoader/Project.toml
 create mode 100644 test/CoolPropDevLoader/src/CoolPropDevLoader.jl

diff --git a/.github/workflows/test_dev.yml b/.github/workflows/test_dev.yml
new file mode 100644
index 0000000..559538b
--- /dev/null
+++ b/.github/workflows/test_dev.yml
@@ -0,0 +1,51 @@
+name: Unit Tests
+
+on:
+  - cron: '0 0 * * *'
+  - workflow_dispatch:
+
+concurrency:
+  # Skip intermediate builds: all builds except for builds on the `master` branch
+  # Cancel intermediate builds: only pull request builds
+  group: ${{ github.workflow }}-${{ github.ref }}-${{ github.ref != 'refs/heads/master' || github.run_number }}
+  cancel-in-progress: ${{ startsWith(github.ref, 'refs/pull/') }}
+
+jobs:
+  test-coolprop-dev:
+    timeout-minutes: 40
+    strategy:
+      matrix:
+        os:
+        - "ubuntu-latest"
+        julia_version:
+        - "nightly"
+        - "1"
+        - "1.10"
+      fail-fast: false
+    runs-on: ${{ matrix.os }}
+
+    steps:
+    - name: Checkout
+      uses: actions/checkout@v7
+
+    - uses: julia-actions/setup-julia@v3
+      with:
+        arch: ${{ matrix.julia_arch }}
+        version: ${{ matrix.julia_version }}
+    - uses: julia-actions/cache@v3
+
+    - name: add CoolPropDevLoader
+      shell: julia --color=yes --project=. {0}
+      run: |
+        using Pkg
+        Pkg.develop(path="test/CoolPropDevLoader")
+
+    - name: test dev
+      shell: julia --color=yes --project=test {0}
+      run: |
+        using Pkg
+        Pkg.develop(path="test/CoolPropDevLoader")
+        using CoolPropDevLoader
+        CoolPropDevLoader.use_dev_library(CoolPropDevLoader.CompileCoolPropFromSourceforge())
+
+    - uses: julia-actions/julia-runtest@v1
\ No newline at end of file
diff --git a/Project.toml b/Project.toml
index 8d3eb71..5ed719e 100644
--- a/Project.toml
+++ b/Project.toml
@@ -5,12 +5,14 @@ version = "0.2.2"
 [deps]
 CoolProp_jll = "3351c21f-4feb-5f29-afb9-f4fcb0e27549"
 Markdown = "d6f4376e-aef5-505a-96c1-9c027394607a"
+Preferences = "21216c6a-2e73-6563-6e65-726566657250"
 Unitful = "1986cc42-f94f-5a68-af5c-568840ba703d"
 
 [compat]
 CoolProp_jll = "6.6, 7.1"
 julia = "1.3"
-Unitful="1"
+Preferences = "1"
+Unitful = "1"
 
 [extras]
 Test = "8dfed614-e22c-5e08-85e1-65c5234f0b40"
diff --git a/src/CoolProp.jl b/src/CoolProp.jl
index 9a7b964..d6c2d6d 100644
--- a/src/CoolProp.jl
+++ b/src/CoolProp.jl
@@ -1,8 +1,20 @@
 #__precompile__()
 module CoolProp
 
+
+
 import Unitful
-using CoolProp_jll
+import CoolProp_jll
+
+@static if VERSION >= v"1.6"
+    using Preferences
+end
+
+@static if VERSION >= v"1.6"
+    const libcoolprop = @load_preference("coolprop_library", CoolProp_jll.libcoolprop)
+else
+    const libcoolprop = CoolProp_jll.libcoolprop
+end
 
 ####################################################################################################################
 ####################################################################################################################
diff --git a/test/CoolPropDevLoader/Project.toml b/test/CoolPropDevLoader/Project.toml
new file mode 100644
index 0000000..86242d5
--- /dev/null
+++ b/test/CoolPropDevLoader/Project.toml
@@ -0,0 +1,18 @@
+name = "CoolPropDevLoader"
+uuid = "e084ae63-2819-5025-826e-f8e611a84251"
+version = "1.0.0"
+
+[deps]
+Downloads = "f43a241f-c20a-4ad4-852c-f6b1247861c6"
+Preferences = "21216c6a-2e73-6563-6e65-726566657250"
+
+[compat]
+Downloads = "1"
+julia = "1.3"
+Preferences = "1"
+
+[extras]
+Test = "8dfed614-e22c-5e08-85e1-65c5234f0b40"
+
+[targets]
+test = ["Test"]
diff --git a/test/CoolPropDevLoader/src/CoolPropDevLoader.jl b/test/CoolPropDevLoader/src/CoolPropDevLoader.jl
new file mode 100644
index 0000000..52b5934
--- /dev/null
+++ b/test/CoolPropDevLoader/src/CoolPropDevLoader.jl
@@ -0,0 +1,90 @@
+module CoolPropDevLoader
+
+using Preferences
+using Downloads
+
+const SOURCEFORGE_URL = https://sourceforge.net/projects/coolprop/files/CoolProp/nightly/source/CoolProp_sources.zip
+const COOLPROP_UUID = "e084ae63-2819-5025-826e-f8e611a84251"
+
+#only available in linux
+function compile_from_sourceforge()
+    # 1. Configuration
+    download_url = "https://sourceforge.net/projects/coolprop/files/CoolProp/nightly/source/CoolProp_sources.zip/download"
+    build_dir = joinpath(@__DIR__, "coolprop_build")  # Change as needed
+    source_zip = joinpath(build_dir, "CoolProp_sources.zip")
+    extract_dir = joinpath(build_dir, "CoolProp")
+    lib_name = "libCoolProp.so"
+    
+    # 2. Create build directory
+    mkpath(build_dir)
+    
+    # 3. Download the source zip
+    @info "Downloading CoolProp source from $download_url..."
+    # SourceForge redirects: we need to find the actual download link
+    # The nightly source is typically at:
+    # https://sourceforge.net/projects/coolprop/files/CoolProp/nightly/source/CoolProp_sources.zip/download
+    
+    Downloads.download(download_url, source_zip)
+    
+    # 4. Extract the zip
+    @info "Extracting source..."
+    run(`unzip -q $source_zip -d $build_dir`)
+    
+    # 5. Prepare for CMake build
+    cd(extract_dir) do
+        # Create build directory inside extracted source
+        build_subdir = joinpath(extract_dir, "build")
+        mkpath(build_subdir)
+        cd(build_subdir) do
+            # 6. Configure with CMake - build shared library
+            @info "Configuring with CMake..."
+            run(`cmake .. -DCOOLPROP_SHARED_LIBRARY=ON -DCMAKE_BUILD_TYPE=Release`)
+            
+            # 7. Build
+            @info "Compiling CoolProp (this may take a few minutes)..."
+            run(`cmake --build . --config Release --parallel $(Sys.CPU_THREADS)`)
+        end
+    end
+    
+    # 8. Locate the generated shared library
+    # The library is typically in build/ or build/Release/
+    possible_paths = [
+        joinpath(extract_dir, "build", lib_name),
+        joinpath(extract_dir, "build", "Release", lib_name),
+        joinpath(extract_dir, "build", "lib", lib_name),
+    ]
+    
+    lib_path = nothing
+    for p in possible_paths
+        if isfile(p)
+            lib_path = p
+            break
+        end
+    end
+    
+    if lib_path === nothing
+        error("Could not find compiled library. Looked in: $(join(possible_paths, ", "))")
+    end
+    
+    @info "CoolProp library built successfully at: $lib_path"
+    return lib_path
+end
+
+struct CompileCoolPropFromSourceforge end
+
+function use_dev_library(::CompileCoolPropFromSourceforge)
+    lib_src = compile_from_sourceforge()
+    set_preferences!(COOLPROP_UUID,"coolprop_library" => lib_src, force = true)
+    @info "Preference set to $lib_src"
+end
+
+function use_dev_library(lib_src::String)
+    set_preferences!(COOLPROP_UUID,"coolprop_library" => lib_src, force = true)
+    @info "Preference set to $lib_src"
+end
+
+function use_default_library()
+    delete_preferences!(COOLPROP_UUID,"coolprop_library",force = true)
+end
+
+end #module
\ No newline at end of file

From 0a6d65ea1b2c3bb113a5d12dc8a77465314cd49c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Andr=C3=A9s=20Riedemann?=
 <38795484+longemen3000@users.noreply.github.com>
Date: Wed, 8 Jul 2026 19:34:45 -0400
Subject: [PATCH 02/27] typo

---
 .github/workflows/test_dev.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.github/workflows/test_dev.yml b/.github/workflows/test_dev.yml
index 559538b..363b8f5 100644
--- a/.github/workflows/test_dev.yml
+++ b/.github/workflows/test_dev.yml
@@ -2,7 +2,7 @@ name: Unit Tests
 
 on:
   - cron: '0 0 * * *'
-  - workflow_dispatch:
+  - workflow_dispatch
 
 concurrency:
   # Skip intermediate builds: all builds except for builds on the `master` branch

From e762a5c7abd81773ec4fa335e22e1ba780f758ad Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Andr=C3=A9s=20Riedemann?=
 <38795484+longemen3000@users.noreply.github.com>
Date: Wed, 8 Jul 2026 19:37:12 -0400
Subject: [PATCH 03/27] typo on yml

---
 .github/workflows/test_dev.yml | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/.github/workflows/test_dev.yml b/.github/workflows/test_dev.yml
index 363b8f5..343705f 100644
--- a/.github/workflows/test_dev.yml
+++ b/.github/workflows/test_dev.yml
@@ -1,8 +1,9 @@
-name: Unit Tests
+name: Development Tests
 
 on:
-  - cron: '0 0 * * *'
-  - workflow_dispatch
+  schedule:
+    - cron: 0 0 * * *
+  workflow_dispatch:
 
 concurrency:
   # Skip intermediate builds: all builds except for builds on the `master` branch

From 8ae40c206bbe852fba26e5729bf995bc8e26754f Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Andr=C3=A9s=20Riedemann?=
 <38795484+longemen3000@users.noreply.github.com>
Date: Wed, 8 Jul 2026 19:40:12 -0400
Subject: [PATCH 04/27] try to run this test when the yml is modified

---
 .github/workflows/test_dev.yml | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/.github/workflows/test_dev.yml b/.github/workflows/test_dev.yml
index 343705f..c24af36 100644
--- a/.github/workflows/test_dev.yml
+++ b/.github/workflows/test_dev.yml
@@ -4,6 +4,9 @@ on:
   schedule:
     - cron: 0 0 * * *
   workflow_dispatch:
+  push:
+    paths:
+      - '.github/**'
 
 concurrency:
   # Skip intermediate builds: all builds except for builds on the `master` branch

From b4e7730778608396f0ca6d249c4b1c97cd83c19c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Andr=C3=A9s=20Riedemann?=
 <38795484+longemen3000@users.noreply.github.com>
Date: Wed, 8 Jul 2026 19:41:24 -0400
Subject: [PATCH 05/27] add arch

---
 .github/workflows/test_dev.yml | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/.github/workflows/test_dev.yml b/.github/workflows/test_dev.yml
index c24af36..c70cf9f 100644
--- a/.github/workflows/test_dev.yml
+++ b/.github/workflows/test_dev.yml
@@ -25,6 +25,8 @@ jobs:
         - "nightly"
         - "1"
         - "1.10"
+        arch:
+        - x64
       fail-fast: false
     runs-on: ${{ matrix.os }}
 

From 675b9c31bc9b6151580bf7ab618f764c0515f25d Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Andr=C3=A9s=20Riedemann?=
 <38795484+longemen3000@users.noreply.github.com>
Date: Wed, 8 Jul 2026 19:44:20 -0400
Subject: [PATCH 06/27] add arch (2)

---
 .github/workflows/test_dev.yml | 11 +++++------
 1 file changed, 5 insertions(+), 6 deletions(-)

diff --git a/.github/workflows/test_dev.yml b/.github/workflows/test_dev.yml
index c70cf9f..4915d60 100644
--- a/.github/workflows/test_dev.yml
+++ b/.github/workflows/test_dev.yml
@@ -19,14 +19,13 @@ jobs:
     timeout-minutes: 40
     strategy:
       matrix:
+        version:
+          - 'lts'
+          - '1'
         os:
-        - "ubuntu-latest"
-        julia_version:
-        - "nightly"
-        - "1"
-        - "1.10"
+          - ubuntu-latest
         arch:
-        - x64
+          - x64
       fail-fast: false
     runs-on: ${{ matrix.os }}
 

From 71510610535a007a1eddc6734eeb906c09b897a8 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Andr=C3=A9s=20Riedemann?=
 <38795484+longemen3000@users.noreply.github.com>
Date: Wed, 8 Jul 2026 19:46:22 -0400
Subject: [PATCH 07/27] fix yml

---
 .github/workflows/test_dev.yml | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/.github/workflows/test_dev.yml b/.github/workflows/test_dev.yml
index 4915d60..2974d5a 100644
--- a/.github/workflows/test_dev.yml
+++ b/.github/workflows/test_dev.yml
@@ -19,12 +19,12 @@ jobs:
     timeout-minutes: 40
     strategy:
       matrix:
-        version:
+        julia_version:
           - 'lts'
           - '1'
         os:
           - ubuntu-latest
-        arch:
+        julia_arch:
           - x64
       fail-fast: false
     runs-on: ${{ matrix.os }}

From 002c9d2310c5d45633eb73371190c8b6ba82c70f Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Andr=C3=A9s=20Riedemann?=
 <38795484+longemen3000@users.noreply.github.com>
Date: Wed, 8 Jul 2026 19:48:09 -0400
Subject: [PATCH 08/27] update CoolPropDevLoader uuid

---
 test/CoolPropDevLoader/Project.toml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/test/CoolPropDevLoader/Project.toml b/test/CoolPropDevLoader/Project.toml
index 86242d5..0e55c83 100644
--- a/test/CoolPropDevLoader/Project.toml
+++ b/test/CoolPropDevLoader/Project.toml
@@ -1,5 +1,5 @@
 name = "CoolPropDevLoader"
-uuid = "e084ae63-2819-5025-826e-f8e611a84251"
+uuid = "1abf7821-c65a-4ba0-83a4-5660520f37c7"
 version = "1.0.0"
 
 [deps]

From 07139a146c468030489461174f83ed65a484761a Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Andr=C3=A9s=20Riedemann?=
 <38795484+longemen3000@users.noreply.github.com>
Date: Wed, 8 Jul 2026 19:51:42 -0400
Subject: [PATCH 09/27] reduce to 20 min again

---
 .github/workflows/test_dev.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.github/workflows/test_dev.yml b/.github/workflows/test_dev.yml
index 2974d5a..6b8f7cf 100644
--- a/.github/workflows/test_dev.yml
+++ b/.github/workflows/test_dev.yml
@@ -16,7 +16,7 @@ concurrency:
 
 jobs:
   test-coolprop-dev:
-    timeout-minutes: 40
+    timeout-minutes: 20
     strategy:
       matrix:
         julia_version:

From 38dd7f2743f25b3e16d2d48a7aef41722b4e48db Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Andr=C3=A9s=20Riedemann?=
 <38795484+longemen3000@users.noreply.github.com>
Date: Wed, 8 Jul 2026 19:53:41 -0400
Subject: [PATCH 10/27] big typo

---
 .github/workflows/test_dev.yml                  | 1 +
 test/CoolPropDevLoader/src/CoolPropDevLoader.jl | 4 ++--
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/.github/workflows/test_dev.yml b/.github/workflows/test_dev.yml
index 6b8f7cf..a1c0ef4 100644
--- a/.github/workflows/test_dev.yml
+++ b/.github/workflows/test_dev.yml
@@ -7,6 +7,7 @@ on:
   push:
     paths:
       - '.github/**'
+      - 'test/CoolPropDevLoader/**'
 
 concurrency:
   # Skip intermediate builds: all builds except for builds on the `master` branch
diff --git a/test/CoolPropDevLoader/src/CoolPropDevLoader.jl b/test/CoolPropDevLoader/src/CoolPropDevLoader.jl
index 52b5934..b7e05ce 100644
--- a/test/CoolPropDevLoader/src/CoolPropDevLoader.jl
+++ b/test/CoolPropDevLoader/src/CoolPropDevLoader.jl
@@ -3,13 +3,13 @@ module CoolPropDevLoader
 using Preferences
 using Downloads
 
-const SOURCEFORGE_URL = https://sourceforge.net/projects/coolprop/files/CoolProp/nightly/source/CoolProp_sources.zip
+const SOURCEFORGE_URL = "https://sourceforge.net/projects/coolprop/files/CoolProp/nightly/source/CoolProp_sources.zip/download"
 const COOLPROP_UUID = "e084ae63-2819-5025-826e-f8e611a84251"
 
 #only available in linux
 function compile_from_sourceforge()
     # 1. Configuration
-    download_url = "https://sourceforge.net/projects/coolprop/files/CoolProp/nightly/source/CoolProp_sources.zip/download"
+    download_url = SOURCEFORGE_URL
     build_dir = joinpath(@__DIR__, "coolprop_build")  # Change as needed
     source_zip = joinpath(build_dir, "CoolProp_sources.zip")
     extract_dir = joinpath(build_dir, "CoolProp")

From 966bb6ddcc8eab32e519d4cc40069684c3ae621c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Andr=C3=A9s=20Riedemann?=
 <38795484+longemen3000@users.noreply.github.com>
Date: Wed, 8 Jul 2026 19:57:08 -0400
Subject: [PATCH 11/27] typo

---
 test/CoolPropDevLoader/src/CoolPropDevLoader.jl | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/test/CoolPropDevLoader/src/CoolPropDevLoader.jl b/test/CoolPropDevLoader/src/CoolPropDevLoader.jl
index b7e05ce..8ba619e 100644
--- a/test/CoolPropDevLoader/src/CoolPropDevLoader.jl
+++ b/test/CoolPropDevLoader/src/CoolPropDevLoader.jl
@@ -17,7 +17,8 @@ function compile_from_sourceforge()
     
     # 2. Create build directory
     mkpath(build_dir)
-    
+    mkpath(extract_dir)
+
     # 3. Download the source zip
     @info "Downloading CoolProp source from $download_url..."
     # SourceForge redirects: we need to find the actual download link

From 98b92ba3fc5d085f2c7a46d657c47803a30949d5 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Andr=C3=A9s=20Riedemann?=
 <38795484+longemen3000@users.noreply.github.com>
Date: Wed, 8 Jul 2026 20:04:07 -0400
Subject: [PATCH 12/27] use changes suggested by llm

---
 .../src/CoolPropDevLoader.jl                  | 76 ++++++++++++-------
 1 file changed, 50 insertions(+), 26 deletions(-)

diff --git a/test/CoolPropDevLoader/src/CoolPropDevLoader.jl b/test/CoolPropDevLoader/src/CoolPropDevLoader.jl
index 8ba619e..11afebe 100644
--- a/test/CoolPropDevLoader/src/CoolPropDevLoader.jl
+++ b/test/CoolPropDevLoader/src/CoolPropDevLoader.jl
@@ -9,10 +9,10 @@ const COOLPROP_UUID = "e084ae63-2819-5025-826e-f8e611a84251"
 #only available in linux
 function compile_from_sourceforge()
     # 1. Configuration
-    download_url = SOURCEFORGE_URL
+    url = SOURCEFORGE_URL
     build_dir = joinpath(@__DIR__, "coolprop_build")  # Change as needed
     source_zip = joinpath(build_dir, "CoolProp_sources.zip")
-    extract_dir = joinpath(build_dir, "CoolProp")
+    extract_dir = build_dir  # We'll extract directly into build_dir, then locate source root
     lib_name = "libCoolProp.so"
     
     # 2. Create build directory
@@ -20,39 +20,59 @@ function compile_from_sourceforge()
     mkpath(extract_dir)
 
     # 3. Download the source zip
-    @info "Downloading CoolProp source from $download_url..."
-    # SourceForge redirects: we need to find the actual download link
-    # The nightly source is typically at:
-    # https://sourceforge.net/projects/coolprop/files/CoolProp/nightly/source/CoolProp_sources.zip/download
-    
+    @info "Downloading CoolProp source from $url..."
+    download_url = "https://sourceforge.net/projects/coolprop/files/CoolProp/nightly/source/CoolProp_sources.zip/download"
     Downloads.download(download_url, source_zip)
     
-    # 4. Extract the zip
+    # 4. Extract the zip into build_dir
     @info "Extracting source..."
     run(`unzip -q $source_zip -d $build_dir`)
     
-    # 5. Prepare for CMake build
-    cd(extract_dir) do
-        # Create build directory inside extracted source
-        build_subdir = joinpath(extract_dir, "build")
-        mkpath(build_subdir)
-        cd(build_subdir) do
-            # 6. Configure with CMake - build shared library
-            @info "Configuring with CMake..."
-            run(`cmake .. -DCOOLPROP_SHARED_LIBRARY=ON -DCMAKE_BUILD_TYPE=Release`)
-            
-            # 7. Build
-            @info "Compiling CoolProp (this may take a few minutes)..."
-            run(`cmake --build . --config Release --parallel $(Sys.CPU_THREADS)`)
+    # 5. Find the actual source root: a directory that contains CMakeLists.txt
+    @info "Locating source root..."
+    function find_cmakelists_root(dir)
+        # Check if dir itself contains CMakeLists.txt
+        if isfile(joinpath(dir, "CMakeLists.txt"))
+            return dir
+        end
+        # Otherwise, look for a subdirectory that contains it
+        for entry in readdir(dir)
+            path = joinpath(dir, entry)
+            if isdir(path) && isfile(joinpath(path, "CMakeLists.txt"))
+                return path
+            end
         end
+        # If not found, search recursively (but be careful with deep structures)
+        for (root, dirs, files) in walkdir(dir)
+            if "CMakeLists.txt" in files
+                return root
+            end
+        end
+        error("Could not find CMakeLists.txt anywhere in $dir")
     end
     
-    # 8. Locate the generated shared library
-    # The library is typically in build/ or build/Release/
+    source_root = find_cmakelists_root(extract_dir)
+    @info "Source root found at: $source_root"
+    
+    # 6. Prepare for CMake build: create a build subdirectory inside source_root
+    build_subdir = joinpath(source_root, "build")
+    mkpath(build_subdir)
+    cd(build_subdir) do
+        # 7. Configure with CMake - build shared library
+        @info "Configuring with CMake..."
+        run(`cmake .. -DCOOLPROP_SHARED_LIBRARY=ON -DCMAKE_BUILD_TYPE=Release`)
+        
+        # 8. Build
+        @info "Compiling CoolProp (this may take a few minutes)..."
+        run(`cmake --build . --config Release --parallel $(Sys.CPU_THREADS)`)
+    end
+    
+    # 9. Locate the generated shared library
+    # The library is typically in build/ or build/Release/ or build/lib/
     possible_paths = [
-        joinpath(extract_dir, "build", lib_name),
-        joinpath(extract_dir, "build", "Release", lib_name),
-        joinpath(extract_dir, "build", "lib", lib_name),
+        joinpath(source_root, "build", lib_name),
+        joinpath(source_root, "build", "Release", lib_name),
+        joinpath(source_root, "build", "lib", lib_name),
     ]
     
     lib_path = nothing
@@ -71,6 +91,10 @@ function compile_from_sourceforge()
     return lib_path
 end
 
+# Usage
+lib_path = build_coolprop()
+@info "Library path: $lib_path"
+
 struct CompileCoolPropFromSourceforge end
 
 function use_dev_library(::CompileCoolPropFromSourceforge)

From 1536b15060c2a5d53d33b253c544c719e16031d7 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Andr=C3=A9s=20Riedemann?=
 <38795484+longemen3000@users.noreply.github.com>
Date: Wed, 8 Jul 2026 20:05:43 -0400
Subject: [PATCH 13/27] typo

---
 test/CoolPropDevLoader/src/CoolPropDevLoader.jl | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/test/CoolPropDevLoader/src/CoolPropDevLoader.jl b/test/CoolPropDevLoader/src/CoolPropDevLoader.jl
index 11afebe..54cd1e3 100644
--- a/test/CoolPropDevLoader/src/CoolPropDevLoader.jl
+++ b/test/CoolPropDevLoader/src/CoolPropDevLoader.jl
@@ -91,10 +91,6 @@ function compile_from_sourceforge()
     return lib_path
 end
 
-# Usage
-lib_path = build_coolprop()
-@info "Library path: $lib_path"
-
 struct CompileCoolPropFromSourceforge end
 
 function use_dev_library(::CompileCoolPropFromSourceforge)

From c6820ee715b673ffa796b6e7e8a619618046c764 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Andr=C3=A9s=20Riedemann?=
 <38795484+longemen3000@users.noreply.github.com>
Date: Wed, 8 Jul 2026 20:18:21 -0400
Subject: [PATCH 14/27] fix test loader

---
 .github/workflows/test_dev.yml                  | 2 +-
 README.md                                       | 9 +++++++++
 test/CoolPropDevLoader/src/CoolPropDevLoader.jl | 4 ++--
 3 files changed, 12 insertions(+), 3 deletions(-)

diff --git a/.github/workflows/test_dev.yml b/.github/workflows/test_dev.yml
index a1c0ef4..c4bb3d7 100644
--- a/.github/workflows/test_dev.yml
+++ b/.github/workflows/test_dev.yml
@@ -17,7 +17,7 @@ concurrency:
 
 jobs:
   test-coolprop-dev:
-    timeout-minutes: 20
+    timeout-minutes: 30
     strategy:
       matrix:
         julia_version:
diff --git a/README.md b/README.md
index 68a2f27..111e8b2 100644
--- a/README.md
+++ b/README.md
@@ -39,3 +39,12 @@ using Unitful: °C, Pa
 HAPropsSI("H", "Tdb", 20°C, "RH", 0.5, "P", 101325Pa)
 38622.83892391293 J kg⁻¹
 ```
+
+## Using development versions of CoolProp
+
+You can point CoolProp.jl to use tyour own version of CoolProp by using `Preferences.jl`:
+
+```julia
+using CoolProp, Preferences
+@set_reference!(CoolProp,"coolprop_library" = my_path_to_library)
+```
\ No newline at end of file
diff --git a/test/CoolPropDevLoader/src/CoolPropDevLoader.jl b/test/CoolPropDevLoader/src/CoolPropDevLoader.jl
index 54cd1e3..580471a 100644
--- a/test/CoolPropDevLoader/src/CoolPropDevLoader.jl
+++ b/test/CoolPropDevLoader/src/CoolPropDevLoader.jl
@@ -100,12 +100,12 @@ function use_dev_library(::CompileCoolPropFromSourceforge)
 end
 
 function use_dev_library(lib_src::String)
-    set_preferences!(COOLPROP_UUID,"coolprop_library" => lib_src, force = true)
+    set_preferences!((COOLPROP_UUID,"CoolProp"),"coolprop_library" => lib_src, force = true,active_project_only = false)
     @info "Preference set to $lib_src"
 end
 
 function use_default_library()
-    delete_preferences!(COOLPROP_UUID,"coolprop_library",force = true)
+    delete_preferences!((COOLPROP_UUID,"CoolProp"),"coolprop_library",force = true,active_project_only = false)
 end
 
 end #module
\ No newline at end of file

From 023c522d109e3bd80e88b3b5ced7c3b6482b2d53 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Andr=C3=A9s=20Riedemann?=
 <38795484+longemen3000@users.noreply.github.com>
Date: Wed, 8 Jul 2026 20:55:23 -0400
Subject: [PATCH 15/27] try with export_prefs = true

---
 test/CoolPropDevLoader/src/CoolPropDevLoader.jl | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/test/CoolPropDevLoader/src/CoolPropDevLoader.jl b/test/CoolPropDevLoader/src/CoolPropDevLoader.jl
index 580471a..9db429a 100644
--- a/test/CoolPropDevLoader/src/CoolPropDevLoader.jl
+++ b/test/CoolPropDevLoader/src/CoolPropDevLoader.jl
@@ -100,12 +100,12 @@ function use_dev_library(::CompileCoolPropFromSourceforge)
 end
 
 function use_dev_library(lib_src::String)
-    set_preferences!((COOLPROP_UUID,"CoolProp"),"coolprop_library" => lib_src, force = true,active_project_only = false)
+    set_preferences!((COOLPROP_UUID,"CoolProp"),"coolprop_library" => lib_src, force = true,active_project_only = false,export_prefs = true)
     @info "Preference set to $lib_src"
 end
 
 function use_default_library()
-    delete_preferences!((COOLPROP_UUID,"CoolProp"),"coolprop_library",force = true,active_project_only = false)
+    delete_preferences!((COOLPROP_UUID,"CoolProp"),"coolprop_library",force = true,active_project_only = false,export_prefs = true)
 end
 
 end #module
\ No newline at end of file

From 36f8d341204cf8ca999559353a6f8abb62562718 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Andr=C3=A9s=20Riedemann?=
 <38795484+longemen3000@users.noreply.github.com>
Date: Wed, 8 Jul 2026 21:06:15 -0400
Subject: [PATCH 16/27] let's try this

---
 .github/workflows/test_dev.yml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/.github/workflows/test_dev.yml b/.github/workflows/test_dev.yml
index c4bb3d7..d4ddf64 100644
--- a/.github/workflows/test_dev.yml
+++ b/.github/workflows/test_dev.yml
@@ -51,6 +51,7 @@ jobs:
       run: |
         using Pkg
         Pkg.develop(path="test/CoolPropDevLoader")
+        Pkg.develop()
         using CoolPropDevLoader
         CoolPropDevLoader.use_dev_library(CoolPropDevLoader.CompileCoolPropFromSourceforge())
 

From 596da78417fd06fa5219e5a7d7a0149e7597c174 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Andr=C3=A9s=20Riedemann?=
 <38795484+longemen3000@users.noreply.github.com>
Date: Wed, 8 Jul 2026 21:11:51 -0400
Subject: [PATCH 17/27] try this (2)

---
 .github/workflows/test_dev.yml | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/.github/workflows/test_dev.yml b/.github/workflows/test_dev.yml
index d4ddf64..7dc59c5 100644
--- a/.github/workflows/test_dev.yml
+++ b/.github/workflows/test_dev.yml
@@ -47,11 +47,11 @@ jobs:
         Pkg.develop(path="test/CoolPropDevLoader")
 
     - name: test dev
-      shell: julia --color=yes --project=test {0}
+      shell: julia --color=yes --compiled-modules=no --project=test {0}
       run: |
         using Pkg
         Pkg.develop(path="test/CoolPropDevLoader")
-        Pkg.develop()
+        Pkg.develop(path = "")
         using CoolPropDevLoader
         CoolPropDevLoader.use_dev_library(CoolPropDevLoader.CompileCoolPropFromSourceforge())
 

From a0079f3962808d8bdefaf6ec76197b701b6948fd Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Andr=C3=A9s=20Riedemann?=
 <38795484+longemen3000@users.noreply.github.com>
Date: Wed, 8 Jul 2026 21:22:22 -0400
Subject: [PATCH 18/27] try this (3)

---
 src/CoolProp.jl                                 | 2 +-
 test/CoolPropDevLoader/Project.toml             | 2 ++
 test/CoolPropDevLoader/src/CoolPropDevLoader.jl | 7 ++++---
 3 files changed, 7 insertions(+), 4 deletions(-)

diff --git a/src/CoolProp.jl b/src/CoolProp.jl
index d6c2d6d..abe5afb 100644
--- a/src/CoolProp.jl
+++ b/src/CoolProp.jl
@@ -11,7 +11,7 @@ import CoolProp_jll
 end
 
 @static if VERSION >= v"1.6"
-    const libcoolprop = @load_preference("coolprop_library", CoolProp_jll.libcoolprop)
+    const libcoolprop = load_preference(CoolProp_jll,"coolprop_library", CoolProp_jll.libcoolprop)
 else
     const libcoolprop = CoolProp_jll.libcoolprop
 end
diff --git a/test/CoolPropDevLoader/Project.toml b/test/CoolPropDevLoader/Project.toml
index 0e55c83..57c1b10 100644
--- a/test/CoolPropDevLoader/Project.toml
+++ b/test/CoolPropDevLoader/Project.toml
@@ -5,11 +5,13 @@ version = "1.0.0"
 [deps]
 Downloads = "f43a241f-c20a-4ad4-852c-f6b1247861c6"
 Preferences = "21216c6a-2e73-6563-6e65-726566657250"
+CoolProp_jll = "3351c21f-4feb-5f29-afb9-f4fcb0e27549"
 
 [compat]
 Downloads = "1"
 julia = "1.3"
 Preferences = "1"
+CoolProp_jll = ">= 0.1"
 
 [extras]
 Test = "8dfed614-e22c-5e08-85e1-65c5234f0b40"
diff --git a/test/CoolPropDevLoader/src/CoolPropDevLoader.jl b/test/CoolPropDevLoader/src/CoolPropDevLoader.jl
index 9db429a..db9ed89 100644
--- a/test/CoolPropDevLoader/src/CoolPropDevLoader.jl
+++ b/test/CoolPropDevLoader/src/CoolPropDevLoader.jl
@@ -2,6 +2,7 @@ module CoolPropDevLoader
 
 using Preferences
 using Downloads
+using CoolProp_jll
 
 const SOURCEFORGE_URL = "https://sourceforge.net/projects/coolprop/files/CoolProp/nightly/source/CoolProp_sources.zip/download"
 const COOLPROP_UUID = "e084ae63-2819-5025-826e-f8e611a84251"
@@ -95,17 +96,17 @@ struct CompileCoolPropFromSourceforge end
 
 function use_dev_library(::CompileCoolPropFromSourceforge)
     lib_src = compile_from_sourceforge()
-    set_preferences!(COOLPROP_UUID,"coolprop_library" => lib_src, force = true)
+    set_preferences!(CoolProp_jll,"coolprop_library" => lib_src, force = true)
     @info "Preference set to $lib_src"
 end
 
 function use_dev_library(lib_src::String)
-    set_preferences!((COOLPROP_UUID,"CoolProp"),"coolprop_library" => lib_src, force = true,active_project_only = false,export_prefs = true)
+    set_preferences!(CoolProp_jll,"coolprop_library" => lib_src, force = true,active_project_only = false,export_prefs = true)
     @info "Preference set to $lib_src"
 end
 
 function use_default_library()
-    delete_preferences!((COOLPROP_UUID,"CoolProp"),"coolprop_library",force = true,active_project_only = false,export_prefs = true)
+    delete_preferences!(CoolProp_jll,"coolprop_library",force = true,export_prefs = true)
 end
 
 end #module
\ No newline at end of file

From 7c08371b62b2259e9ac240dc8ec91a70c50f39bd Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Andr=C3=A9s=20Riedemann?=
 <38795484+longemen3000@users.noreply.github.com>
Date: Wed, 8 Jul 2026 21:25:03 -0400
Subject: [PATCH 19/27] remove unused pkg develop

---
 .github/workflows/test_dev.yml | 1 -
 1 file changed, 1 deletion(-)

diff --git a/.github/workflows/test_dev.yml b/.github/workflows/test_dev.yml
index 7dc59c5..d99a9e9 100644
--- a/.github/workflows/test_dev.yml
+++ b/.github/workflows/test_dev.yml
@@ -51,7 +51,6 @@ jobs:
       run: |
         using Pkg
         Pkg.develop(path="test/CoolPropDevLoader")
-        Pkg.develop(path = "")
         using CoolPropDevLoader
         CoolPropDevLoader.use_dev_library(CoolPropDevLoader.CompileCoolPropFromSourceforge())
 

From 7a1ac1b7e0da3f73f26b2fef16199b9cd4cd09aa Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Andr=C3=A9s=20Riedemann?=
 <38795484+longemen3000@users.noreply.github.com>
Date: Wed, 8 Jul 2026 21:36:29 -0400
Subject: [PATCH 20/27] load same CoolProp_jll pkg

---
 test/CoolProp.jl                    | 2 ++
 test/CoolPropDevLoader/Project.toml | 2 +-
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/test/CoolProp.jl b/test/CoolProp.jl
index 46c7d51..0c36e6d 100644
--- a/test/CoolProp.jl
+++ b/test/CoolProp.jl
@@ -1,6 +1,8 @@
 #__precompile__()
 module CoolProp
 
+@info "CoolProp library path: $(CoolProp.libcoolprop)"
+
 errcode = Ref{Clong}(0)
 const buffer_length = 20000
 message_buffer = Array(UInt8, buffer_length)
diff --git a/test/CoolPropDevLoader/Project.toml b/test/CoolPropDevLoader/Project.toml
index 57c1b10..bc7edc3 100644
--- a/test/CoolPropDevLoader/Project.toml
+++ b/test/CoolPropDevLoader/Project.toml
@@ -11,7 +11,7 @@ CoolProp_jll = "3351c21f-4feb-5f29-afb9-f4fcb0e27549"
 Downloads = "1"
 julia = "1.3"
 Preferences = "1"
-CoolProp_jll = ">= 0.1"
+CoolProp_jll = "6.6, 7.1"
 
 [extras]
 Test = "8dfed614-e22c-5e08-85e1-65c5234f0b40"

From a35a7ce8eb843abce3fac1134206a60d85d8b931 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Andr=C3=A9s=20Riedemann?=
 <38795484+longemen3000@users.noreply.github.com>
Date: Wed, 8 Jul 2026 21:44:30 -0400
Subject: [PATCH 21/27] try again

---
 .github/workflows/test_dev.yml | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/.github/workflows/test_dev.yml b/.github/workflows/test_dev.yml
index d99a9e9..60033de 100644
--- a/.github/workflows/test_dev.yml
+++ b/.github/workflows/test_dev.yml
@@ -21,8 +21,7 @@ jobs:
     strategy:
       matrix:
         julia_version:
-          - 'lts'
-          - '1'
+          - '1.12'
         os:
           - ubuntu-latest
         julia_arch:
@@ -53,5 +52,6 @@ jobs:
         Pkg.develop(path="test/CoolPropDevLoader")
         using CoolPropDevLoader
         CoolPropDevLoader.use_dev_library(CoolPropDevLoader.CompileCoolPropFromSourceforge())
+        Pkg.add("Test")
 
     - uses: julia-actions/julia-runtest@v1
\ No newline at end of file

From b588219927842c2d87e8f25d80fa4baac995f2fd Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Andr=C3=A9s=20Riedemann?=
 <38795484+longemen3000@users.noreply.github.com>
Date: Wed, 8 Jul 2026 21:52:49 -0400
Subject: [PATCH 22/27] remove inaccurate version

---
 README.md | 9 ---------
 1 file changed, 9 deletions(-)

diff --git a/README.md b/README.md
index 111e8b2..5d6d768 100644
--- a/README.md
+++ b/README.md
@@ -38,13 +38,4 @@ using Unitful: °C, Pa
 
 HAPropsSI("H", "Tdb", 20°C, "RH", 0.5, "P", 101325Pa)
 38622.83892391293 J kg⁻¹
-```
-
-## Using development versions of CoolProp
-
-You can point CoolProp.jl to use tyour own version of CoolProp by using `Preferences.jl`:
-
-```julia
-using CoolProp, Preferences
-@set_reference!(CoolProp,"coolprop_library" = my_path_to_library)
 ```
\ No newline at end of file

From 022643b47129863311429f666016ea28ff27d919 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Andr=C3=A9s=20Riedemann?=
 <38795484+longemen3000@users.noreply.github.com>
Date: Wed, 8 Jul 2026 21:54:21 -0400
Subject: [PATCH 23/27] change name in gh

---
 .github/workflows/test_dev.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.github/workflows/test_dev.yml b/.github/workflows/test_dev.yml
index 60033de..7a90232 100644
--- a/.github/workflows/test_dev.yml
+++ b/.github/workflows/test_dev.yml
@@ -45,7 +45,7 @@ jobs:
         using Pkg
         Pkg.develop(path="test/CoolPropDevLoader")
 
-    - name: test dev
+    - name: Compiling CoolProp
       shell: julia --color=yes --compiled-modules=no --project=test {0}
       run: |
         using Pkg

From 825557c89aa8fb54885e2f6a24b576c7a82b9f64 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Andr=C3=A9s=20Riedemann?=
 <38795484+longemen3000@users.noreply.github.com>
Date: Wed, 8 Jul 2026 21:59:20 -0400
Subject: [PATCH 24/27] .

---
 .github/workflows/test_dev.yml | 115 +++++++++++++++++----------------
 1 file changed, 58 insertions(+), 57 deletions(-)

diff --git a/.github/workflows/test_dev.yml b/.github/workflows/test_dev.yml
index 7a90232..d10fdb1 100644
--- a/.github/workflows/test_dev.yml
+++ b/.github/workflows/test_dev.yml
@@ -1,57 +1,58 @@
-name: Development Tests
-
-on:
-  schedule:
-    - cron: 0 0 * * *
-  workflow_dispatch:
-  push:
-    paths:
-      - '.github/**'
-      - 'test/CoolPropDevLoader/**'
-
-concurrency:
-  # Skip intermediate builds: all builds except for builds on the `master` branch
-  # Cancel intermediate builds: only pull request builds
-  group: ${{ github.workflow }}-${{ github.ref }}-${{ github.ref != 'refs/heads/master' || github.run_number }}
-  cancel-in-progress: ${{ startsWith(github.ref, 'refs/pull/') }}
-
-jobs:
-  test-coolprop-dev:
-    timeout-minutes: 30
-    strategy:
-      matrix:
-        julia_version:
-          - '1.12'
-        os:
-          - ubuntu-latest
-        julia_arch:
-          - x64
-      fail-fast: false
-    runs-on: ${{ matrix.os }}
-
-    steps:
-    - name: Checkout
-      uses: actions/checkout@v7
-
-    - uses: julia-actions/setup-julia@v3
-      with:
-        arch: ${{ matrix.julia_arch }}
-        version: ${{ matrix.julia_version }}
-    - uses: julia-actions/cache@v3
-
-    - name: add CoolPropDevLoader
-      shell: julia --color=yes --project=. {0}
-      run: |
-        using Pkg
-        Pkg.develop(path="test/CoolPropDevLoader")
-
-    - name: Compiling CoolProp
-      shell: julia --color=yes --compiled-modules=no --project=test {0}
-      run: |
-        using Pkg
-        Pkg.develop(path="test/CoolPropDevLoader")
-        using CoolPropDevLoader
-        CoolPropDevLoader.use_dev_library(CoolPropDevLoader.CompileCoolPropFromSourceforge())
-        Pkg.add("Test")
-
-    - uses: julia-actions/julia-runtest@v1
\ No newline at end of file
+name: Development Tests
+
+on:
+  schedule:
+    - cron: 0 0 * * *
+  workflow_dispatch:
+  push:
+    paths:
+      - '.github/**'
+      - 'test/CoolPropDevLoader/**'
+
+concurrency:
+  # Skip intermediate builds: all builds except for builds on the `master` branch
+  # Cancel intermediate builds: only pull request builds
+  group: ${{ github.workflow }}-${{ github.ref }}-${{ github.ref != 'refs/heads/master' || github.run_number }}
+  cancel-in-progress: ${{ startsWith(github.ref, 'refs/pull/') }}
+
+jobs:
+  test-coolprop-dev:
+    timeout-minutes: 30
+    strategy:
+      matrix:
+        julia_version:
+          - '1.12'
+        os:
+          - ubuntu-latest
+        julia_arch:
+          - x64
+      fail-fast: false
+    runs-on: ${{ matrix.os }}
+
+    steps:
+    - name: Checkout
+      uses: actions/checkout@v7
+
+    - uses: julia-actions/setup-julia@v3
+      with:
+        arch: ${{ matrix.julia_arch }}
+        version: ${{ matrix.julia_version }}
+    - uses: julia-actions/cache@v3
+
+    - name: add CoolPropDevLoader
+      shell: julia --color=yes --project=. {0}
+      run: |
+        using Pkg
+        Pkg.develop(path="test/CoolPropDevLoader")
+
+    - name: Compiling CoolProp
+      shell: julia --color=yes --compiled-modules=no --project=test {0}
+      run: |
+        using Pkg
+        Pkg.develop(path="test/CoolPropDevLoader")
+        using CoolPropDevLoader
+        CoolPropDevLoader.use_dev_library(CoolPropDevLoader.CompileCoolPropFromSourceforge())
+        Pkg.add("Test")
+
+    - uses: julia-actions/julia-runtest@v1
+    
\ No newline at end of file

From 2637c3d6842526826ae633679a8d9a00c1f63379 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Andr=C3=A9s=20Riedemann?=
 <38795484+longemen3000@users.noreply.github.com>
Date: Wed, 8 Jul 2026 22:13:57 -0400
Subject: [PATCH 25/27] remove unused constant

---
 test/CoolPropDevLoader/src/CoolPropDevLoader.jl | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/test/CoolPropDevLoader/src/CoolPropDevLoader.jl b/test/CoolPropDevLoader/src/CoolPropDevLoader.jl
index db9ed89..3bc30d1 100644
--- a/test/CoolPropDevLoader/src/CoolPropDevLoader.jl
+++ b/test/CoolPropDevLoader/src/CoolPropDevLoader.jl
@@ -5,7 +5,6 @@ using Downloads
 using CoolProp_jll
 
 const SOURCEFORGE_URL = "https://sourceforge.net/projects/coolprop/files/CoolProp/nightly/source/CoolProp_sources.zip/download"
-const COOLPROP_UUID = "e084ae63-2819-5025-826e-f8e611a84251"
 
 #only available in linux
 function compile_from_sourceforge()
@@ -22,8 +21,7 @@ function compile_from_sourceforge()
 
     # 3. Download the source zip
     @info "Downloading CoolProp source from $url..."
-    download_url = "https://sourceforge.net/projects/coolprop/files/CoolProp/nightly/source/CoolProp_sources.zip/download"
-    Downloads.download(download_url, source_zip)
+    Downloads.download(SOURCEFORGE_URL, source_zip)
     
     # 4. Extract the zip into build_dir
     @info "Extracting source..."

From a7cded551d11d66481ed1c03281f6ba5dd36c32b Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Andr=C3=A9s=20Riedemann?=
 <38795484+longemen3000@users.noreply.github.com>
Date: Thu, 9 Jul 2026 02:31:39 -0400
Subject: [PATCH 26/27] suggestions by coderabbit

---
 test/CoolPropDevLoader/Project.toml             | 2 +-
 test/CoolPropDevLoader/src/CoolPropDevLoader.jl | 4 ++--
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/test/CoolPropDevLoader/Project.toml b/test/CoolPropDevLoader/Project.toml
index bc7edc3..b2860ca 100644
--- a/test/CoolPropDevLoader/Project.toml
+++ b/test/CoolPropDevLoader/Project.toml
@@ -9,7 +9,7 @@ CoolProp_jll = "3351c21f-4feb-5f29-afb9-f4fcb0e27549"
 
 [compat]
 Downloads = "1"
-julia = "1.3"
+julia = "1.6"
 Preferences = "1"
 CoolProp_jll = "6.6, 7.1"
 
diff --git a/test/CoolPropDevLoader/src/CoolPropDevLoader.jl b/test/CoolPropDevLoader/src/CoolPropDevLoader.jl
index 3bc30d1..0aa5750 100644
--- a/test/CoolPropDevLoader/src/CoolPropDevLoader.jl
+++ b/test/CoolPropDevLoader/src/CoolPropDevLoader.jl
@@ -25,7 +25,7 @@ function compile_from_sourceforge()
     
     # 4. Extract the zip into build_dir
     @info "Extracting source..."
-    run(`unzip -q $source_zip -d $build_dir`)
+    run(`unzip -qo $source_zip -d $build_dir`)
     
     # 5. Find the actual source root: a directory that contains CMakeLists.txt
     @info "Locating source root..."
@@ -99,7 +99,7 @@ function use_dev_library(::CompileCoolPropFromSourceforge)
 end
 
 function use_dev_library(lib_src::String)
-    set_preferences!(CoolProp_jll,"coolprop_library" => lib_src, force = true,active_project_only = false,export_prefs = true)
+    set_preferences!(CoolProp_jll,"coolprop_library" => lib_src, force = true)
     @info "Preference set to $lib_src"
 end
 

From 5fb76149225fea820241fe4af087c578331c0a25 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Andr=C3=A9s=20Riedemann?=
 <38795484+longemen3000@users.noreply.github.com>
Date: Thu, 9 Jul 2026 02:59:11 -0400
Subject: [PATCH 27/27] restrict permissions

---
 .github/workflows/test_dev.yml | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/.github/workflows/test_dev.yml b/.github/workflows/test_dev.yml
index d10fdb1..e649a09 100644
--- a/.github/workflows/test_dev.yml
+++ b/.github/workflows/test_dev.yml
@@ -9,7 +9,10 @@ on:
       - '.github/**'
       - 'test/CoolPropDevLoader/**'
 
-concurrency:
+permissions:
+  contents: read
+
+  concurrency:
   # Skip intermediate builds: all builds except for builds on the `master` branch
   # Cancel intermediate builds: only pull request builds
   group: ${{ github.workflow }}-${{ github.ref }}-${{ github.ref != 'refs/heads/master' || github.run_number }}