build: declare the exact toolchain and the canonical recipes

Assisted-by: GLM 5.3 Flash

go.mod

@@ -1,7 +1,5 @@
 module sourcedock.dev/petrbalvin/gasm-devkit
 
-go 1.27
-
-toolchain go1.27.1
+go 1.27.1
 
 require golang.org/x/arch v0.30.0

justfile

@@ -1,16 +1,15 @@
-# gasm-devkit: developer tooling for Go's Plan 9 assembler (GAsm).
-
+# gasm-devkit.
+#
+# Replace gasm-devkit here and the values in the variable block. Everything below the block
+# is the standard set and is identical in every repository; see the `justfile` skill.
 binary := "gasm"
 package := "./cmd/gasm"
 
-# What the test and bench recipes sweep. The whole suite runs, so the
-# packages that need hardware and the CLI glue stay under the gates.
-packages := "./..."
-
-# The coverage floor is computed over these product packages only, so the
-# hardware-bound (debug) and the CLI glue (cmd/gasm) do not dilute the
-# number. Keep this equal to the Coverage gate in .gitea/workflows/test.yml.
-coverpkg := "./arch/...,./asm/...,./ast/...,./disasm/...,./format/...,./lexer/...,./lint/...,./lsp/...,./parser/...,./token/...,./verify/..."
+# What the test and bench recipes sweep. Scope this to the logic packages when a thin
+# cmd/ drags the coverage floor down, for example "./internal/... ./pkg/...". Never name
+# a directory the project does not have: a pattern that matches nothing is a setup
+# failure, not an empty run.
+packages := "./arch/... ./asm/... ./ast/... ./disasm/... ./format/... ./lexer/... ./lint/... ./lsp/... ./parser/... ./token/... ./verify/..."
 
 bindir := env_var_or_default("BINDIR", env_var("HOME") / ".local" / "bin")
 
@@ -24,10 +23,8 @@ build:
 # The test gate: the suite, no cache, the coverage floor.
 test:
     #!/usr/bin/env perl
-    my $coverpkg = q({{coverpkg}});
-    system(q{go}, q{test}, q{-count=1}, q{-timeout}, q{30m},
-      q{-coverprofile}, q{coverage.out}, q{-coverpkg}, $coverpkg,
-      qw({{packages}})) == 0
+    system(q{go}, q{test}, q{-count=1}, q{-timeout}, q{10m},
+      q{-coverprofile}, q{coverage.out}, qw({{packages}})) == 0
       or die qq{the test suite failed\n};
     open(my $c, q{-|}, q{go}, q{tool}, q{cover}, q{-func=coverage.out}) or die qq{cover: $!};
     my $total;
@@ -39,7 +36,7 @@ test:
 
 # The same suite under the race detector. The expensive one.
 race:
-    go test -race -count=1 -timeout 30m {{packages}}
+    go test -race -count=1 -timeout 10m {{packages}}
 
 # Fast scoped run for iterating. This is the one that runs after every edit.
 unit pkgs=packages run=".*":
@@ -88,8 +85,8 @@ uninstall:
     rm -f "{{bindir}}/{{binary}}"
 
 # Run the program. The flag is there because `go run` does not stamp the build otherwise.
-run *ARGS:
-    go run -buildvcs=true {{package}} {{ARGS}}
+run:
+    go run -buildvcs=true {{package}}
 
 # Run with watch or hot reload, where the project has one.
 dev: