Update experimental stack.yaml

Author: mpilgrem

stack-ghc-9.10.1.yaml

@@ -2,16 +2,13 @@
 # built with GHC 9.10.1.
 #
 # Currently, Stack cannot be built with GHC 9.10.1 because:
-# * Cabal-3.14.1.0 has changed the type of
+# * Cabal-3.12.0.0 has changed the type of
 #   Distribution.PackageDescription.Check.checkPackage.
-# * fsnotify does not work at runtime with GHC 9.10.1/Linux. See
-#   https://github.com/haskell-fswatch/hfsnotify/issues/115
 
-snapshot: nightly-2025-02-15 # GHC 9.10.1
+snapshot: nightly-2025-04-03 # GHC 9.10.1
 
 allow-newer: true
 allow-newer-deps:
-- path
 # Added to ignore upper bound on Cabal.
 - stack
 
@@ -26,7 +23,5 @@ nix:
   - unzip
 
 flags:
-  path:
-    os-string: true
   stack:
     developer-mode: true

stack-ghc-9.10.1.yaml.lock

@@ -6,7 +6,7 @@
 packages: []
 snapshots:
 - completed:
-    sha256: 28105fd76386569f72c84978edbf017e006f5ee3957bb578f79bcd40db1376b9
-    size: 653612
-    url: https://raw.githubusercontent.com/commercialhaskell/stackage-snapshots/master/nightly/2025/2/15.yaml
-  original: nightly-2025-02-15
+    sha256: 47a4c110af9a5c55e3135bbf7cec3a6e5451ba3bfa50a06f0443012a2642fbc0
+    size: 674536
+    url: https://raw.githubusercontent.com/commercialhaskell/stackage-snapshots/master/nightly/2025/4/3.yaml
+  original: nightly-2025-04-03

stack-ghc-9.12.1.yaml

@@ -0,0 +1,37 @@
+# This is an experimental project-level configuration, to see if Stack can be
+# built with GHC 9.12.2.
+#
+# Currently, Stack cannot be built with GHC 9.12.2 because:
+# * Cabal-3.14.1.0 has changed the type of
+#   Distribution.PackageDescription.Check.checkPackage.
+
+snapshot: nightly-2025-04-03 # GHC 9.10.1
+compiler: ghc-9.12.2
+
+extra-deps:
+# Reinstated because pruned
+- Cabal-3.14.1.0
+# Reinstated because pruned
+- Cabal-syntax-3.14.1.0
+- parsec-3.1.18.0
+# mustache cannot deal with Data.Text.show ambiguity in boot package text-2.1.2
+- text-2.1.1
+
+allow-newer: true
+allow-newer-deps:
+# Added to ignore upper bound on Cabal:
+- stack
+
+docker:
+  enable: false
+  repo: quay.io/benz0li/ghc-musl:9.12.2
+
+nix:
+  # --nix on the command-line to enable.
+  packages:
+  - zlib
+  - unzip
+
+flags:
+  stack:
+    developer-mode: true

stack-ghc-9.12.1.yaml.lock

@@ -0,0 +1,40 @@
+# This file was autogenerated by Stack.
+# You should not edit this file by hand.
+# For more information, please see the documentation at:
+#   https://docs.haskellstack.org/en/stable/topics/lock_files
+
+packages:
+- completed:
+    hackage: Cabal-3.14.1.0@sha256:d24c689fd4b56cd12f8225562c00657e97c528849a2fc3d535557a83ca5f8dfc,13720
+    pantry-tree:
+      sha256: 9a6a7521ae2f0d802887ea0198464740ab9717cf0ac5562b4b91402a410e42dd
+      size: 12219
+  original:
+    hackage: Cabal-3.14.1.0
+- completed:
+    hackage: Cabal-syntax-3.14.1.0@sha256:557a2b20dc85f052c86c5a06dcbd7c6995f2d0391bbff8e62c90b4b5975211da,7380
+    pantry-tree:
+      sha256: b515a5cfb9da09c0aae57ca223281d06dad9d11dfc466fc47d2e83720a078fea
+      size: 10977
+  original:
+    hackage: Cabal-syntax-3.14.1.0
+- completed:
+    hackage: parsec-3.1.18.0@sha256:dfbb9835b8abc966b6bbd34340ef5122227b4cf4480062b85ca4c4704f054f98,4535
+    pantry-tree:
+      sha256: 48ae1440eb8eb4fecde2a724c492e830ff2bec341117164302399b417733bf70
+      size: 2810
+  original:
+    hackage: parsec-3.1.18.0
+- completed:
+    hackage: text-2.1.1@sha256:94352aa4f11a1a1ec075e7c3673e9b57099bf88208f68d81d33615b605f2bdba,10653
+    pantry-tree:
+      sha256: 4ac0285440c454cb889165f6c49de9d894fd14dc7750a1e34216b87871f2316b
+      size: 8413
+  original:
+    hackage: text-2.1.1
+snapshots:
+- completed:
+    sha256: 47a4c110af9a5c55e3135bbf7cec3a6e5451ba3bfa50a06f0443012a2642fbc0
+    size: 674536
+    url: https://raw.githubusercontent.com/commercialhaskell/stackage-snapshots/master/nightly/2025/4/3.yaml
+  original: nightly-2025-04-03