The library facade takes its core modules from where they went

build.zig

@@ -13,11 +13,28 @@ pub fn build(b: *std.Build) void {
     // Cycle 78: Optional tree-sitter integration for VIBEE AST analysis
     const enable_treesitter = b.option(bool, "treesitter", "Enable tree-sitter AST analysis for VIBEE (requires libtree-sitter)") orelse false;
 
+    // The modules src/trinity.zig lost when 42490a22 moved them out. Declared
+    // here, before the first use, because three separate targets root that file.
+    //
+    // The naming in golden-float is confusing enough to be worth writing down:
+    // its root exports `bigint`, and that name points at ternary/hybrid.zig,
+    // while the actual bigint is exported as `ternary_primitives`. The aliases
+    // below are chosen by what each module CONTAINS -- checked symbol by symbol
+    // against what src/trinity.zig re-exports -- not by what it is called.
+    const zig_hdc_dep2 = b.dependency("zig_hdc", .{ .target = target, .optimize = optimize });
+    const gf_dep = b.dependency("zig_golden_float", .{ .target = target, .optimize = optimize });
+    const hdc_vsa_mod = zig_hdc_dep2.module("zig-hdc-vsa");
+    const gf_mod = gf_dep.module("golden-float");
+
     // Library module for imports
     const trinity_mod = b.createModule(.{
         .root_source_file = b.path("src/trinity.zig"),
         .target = target,
         .optimize = optimize,
+        .imports = &.{
+            .{ .name = "hdc_vsa", .module = hdc_vsa_mod },
+            .{ .name = "golden_float", .module = gf_mod },
+        },
     });
 
     // VIBEEC compiler module — single source of truth from trinity-nexus/lang
@@ -44,6 +61,10 @@ pub fn build(b: *std.Build) void {
             .root_source_file = b.path("src/trinity.zig"),
             .target = target,
             .optimize = optimize,
+            .imports = &.{
+                .{ .name = "hdc_vsa", .module = hdc_vsa_mod },
+                .{ .name = "golden_float", .module = gf_mod },
+            },
         }),
     });
     b.installArtifact(lib);
@@ -175,6 +196,10 @@ pub fn build(b: *std.Build) void {
             .root_source_file = b.path("src/trinity.zig"),
             .target = target,
             .optimize = optimize,
+            .imports = &.{
+                .{ .name = "hdc_vsa", .module = hdc_vsa_mod },
+                .{ .name = "golden_float", .module = gf_mod },
+            },
         }),
     });
 

build.zig.zon

@@ -14,6 +14,10 @@
             .url = "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/gHashTag/zig-hdc/archive/main.tar.gz",
             .hash = "zig_hdc-0.1.0-6NS2Eoy7FgAFWrBY3anapf1nXxhm6TvPApY3NHoSW8MG",
         },
+        .zig_golden_float = .{
+            .url = "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/gHashTag/zig-golden-float/archive/main.tar.gz",
+            .hash = "golden_float-2.1.0-h7LKhQ3lCgBfkjryIT9MnOTWleMQrdrgOIxQOhxqzTVu",
+        },
     },
     .paths = .{""},
     .fingerprint = 0xa9f69745ba7ed82d,

src/trinity.zig

@@ -9,14 +9,30 @@
 
 const std = @import("std");
 
-// Core modules
-pub const bigint = @import("bigint.zig");
-pub const packed_trit = @import("packed_trit.zig");
-pub const hybrid = @import("hybrid.zig");
-pub const vsa = @import("vsa/core.zig");
-pub const vsa_agent = @import("vsa/agent.zig");
+// Core modules.
+//
+// Four of these were files in this repository until 42490a22 moved them into
+// gHashTag/zig-hdc and gHashTag/zig-golden-float without moving the references,
+// which is one of the reasons this build failed from March. They come from
+// those packages now.
+//
+// The aliasing is decided by what each module CONTAINS, checked symbol by
+// symbol against the re-exports below, not by what it is called: golden-float
+// exports `bigint` and that name points at its ternary/hybrid.zig, while the
+// actual big-integer module is exported as `ternary_primitives`.
+const golden_float = @import("golden_float");
+
+pub const bigint = golden_float.ternary_primitives;
+pub const packed_trit = golden_float.packed_trit;
+pub const hybrid = golden_float.bigint;
+pub const vsa = @import("hdc_vsa");
 pub const vm = @import("vm.zig");
 
+// vsa/agent.zig is not re-exported. Its five parts have never been tracked in
+// this repository, and they are not in zig-hdc either -- the facade there was
+// withdrawn for the same reason. Nothing below referenced vsa_agent, so this
+// removes a name nobody could resolve rather than a capability anybody had.
+
 // SDK modules (high-level API)
 pub const sdk = @import("sdk.zig");
 pub const science = @import("science.zig");