diff --git a/.github/workflows/coverage.yml b/.github/workflows/coverage.yml
index 97eae0c..f3f817a 100644
--- a/.github/workflows/coverage.yml
+++ b/.github/workflows/coverage.yml
@@ -21,16 +21,14 @@ jobs:
         run: |
           cp .ci_support/environment.yml environment.yml
           echo "- flux-core =0.59.0" >> environment.yml
+          echo -e "channels:\n  - conda-forge\n" > .condarc
       - name: Setup Mambaforge
         uses: conda-incubator/setup-miniconda@v3
         with:
           python-version: '3.12'
-          miniforge-variant: Mambaforge
-          channels: conda-forge
-          channel-priority: strict
-          activate-environment: my-env
+          miniforge-version: latest
+          condarc-file: .condarc
           environment-file: environment.yml
-          use-mamba: true
       - name: Install
         shell: bash -l {0}
         run: |
diff --git a/.github/workflows/deploy.yml b/.github/workflows/deploy.yml
index 9d929bd..834a767 100644
--- a/.github/workflows/deploy.yml
+++ b/.github/workflows/deploy.yml
@@ -19,14 +19,13 @@ jobs:
       id-token: write
     steps:
     - uses: actions/checkout@v4
+    - name: Conda config
+      run: echo -e "channels:\n  - conda-forge\n" > .condarc
     - uses: conda-incubator/setup-miniconda@v3
       with:
         python-version: "3.12"
-        mamba-version: "*"
-        channels: conda-forge
-        miniforge-variant: Mambaforge
-        channel-priority: strict
-        auto-update-conda: true
+        miniforge-version: latest
+        condarc-file: .condarc
         environment-file: .ci_support/environment.yml
     - name: Convert dependencies
       run: |
diff --git a/.github/workflows/mini.yml b/.github/workflows/mini.yml
index c450896..000bbf2 100644
--- a/.github/workflows/mini.yml
+++ b/.github/workflows/mini.yml
@@ -20,16 +20,14 @@ jobs:
           sed -i '/defusedxml/d' environment.yml
           sed -i '/paramiko/d' environment.yml
           sed -i '/tqdm/d' environment.yml
+          echo -e "channels:\n  - conda-forge\n" > .condarc
       - name: Setup Mambaforge
         uses: conda-incubator/setup-miniconda@v3
         with:
           python-version: '3.12'
-          miniforge-variant: Mambaforge
-          channels: conda-forge
-          channel-priority: strict
-          activate-environment: my-env
+          miniforge-version: latest
+          condarc-file: .condarc
           environment-file: environment.yml
-          use-mamba: true
       - name: Test
         shell: bash -l {0}
         run: |
diff --git a/.github/workflows/notebooks.yml b/.github/workflows/notebooks.yml
index 0577406..b66759c 100644
--- a/.github/workflows/notebooks.yml
+++ b/.github/workflows/notebooks.yml
@@ -16,16 +16,14 @@ jobs:
         run: |
           cp binder/environment.yml environment.yml
           tail --lines=+4 .ci_support/environment-notebooks.yml >> environment.yml
+          echo -e "channels:\n  - conda-forge\n" > .condarc
       - name: Setup Mambaforge
         uses: conda-incubator/setup-miniconda@v3
         with:
           python-version: "3.12"
-          miniforge-variant: Mambaforge
-          channels: conda-forge
-          channel-priority: strict
-          activate-environment: my-env
+          miniforge-version: latest
+          condarc-file: .condarc
           environment-file: environment.yml
-          use-mamba: true
       - name: Install
         shell: bash -l {0}
         run: |
diff --git a/.github/workflows/pypicheck.yml b/.github/workflows/pypicheck.yml
index 2ed0ad6..533e6d6 100644
--- a/.github/workflows/pypicheck.yml
+++ b/.github/workflows/pypicheck.yml
@@ -14,16 +14,15 @@ jobs:
 
     steps:
       - uses: actions/checkout@v4
+      - name: Conda config
+        run: echo -e "channels:\n  - conda-forge\n" > .condarc
       - name: Setup Mambaforge
         uses: conda-incubator/setup-miniconda@v3
         with:
           python-version: '3.12'
-          miniforge-variant: Mambaforge
-          channels: conda-forge
-          channel-priority: strict
-          activate-environment: my-env
+          miniforge-version: latest
+          condarc-file: .condarc
           environment-file: .ci_support/environment.yml
-          use-mamba: true
       - name: Pip check
         shell: bash -l {0}
         run: |
diff --git a/.github/workflows/unittest.yml b/.github/workflows/unittest.yml
index 7145522..fababb6 100644
--- a/.github/workflows/unittest.yml
+++ b/.github/workflows/unittest.yml
@@ -34,16 +34,16 @@ jobs:
 
     steps:
       - uses: actions/checkout@v4
+      - name: Conda config
+        shell: bash -l {0}
+        run: echo -e "channels:\n  - conda-forge\n" > .condarc
       - name: Setup Mambaforge
         uses: conda-incubator/setup-miniconda@v3
         with:
           python-version: ${{ matrix.python-version }}
-          miniforge-variant: Mambaforge
-          channels: conda-forge
-          channel-priority: strict
-          activate-environment: my-env
+          miniforge-version: latest
+          condarc-file: .condarc
           environment-file: .ci_support/environment.yml
-          use-mamba: true
       - name: Test
         shell: bash -l {0}
         run: |
diff --git a/.github/workflows/unittests_old.yml b/.github/workflows/unittests_old.yml
index b4bbf41..1fb43d3 100644
--- a/.github/workflows/unittests_old.yml
+++ b/.github/workflows/unittests_old.yml
@@ -13,16 +13,15 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
+      - name: Conda config
+        run: echo -e "channels:\n  - conda-forge\n" > .condarc
       - name: Setup Mambaforge
         uses: conda-incubator/setup-miniconda@v3
         with:
           python-version: '3.9'
-          miniforge-variant: Mambaforge
-          channels: conda-forge
-          channel-priority: strict
-          activate-environment: my-env
+          miniforge-version: latest
+          condarc-file: .condarc
           environment-file: .ci_support/environment-old.yml
-          use-mamba: true
       - name: Test
         shell: bash -l {0}
         run: |