diff --git a/.github/workflows/CI.yml b/.github/workflows/CI.yml
index 34b3048609..fd7a7f5433 100644
--- a/.github/workflows/CI.yml
+++ b/.github/workflows/CI.yml
@@ -29,8 +29,8 @@ jobs:
       fail-fast: false
       matrix:
         version:
-          - "1.10"
-          - "1.11"
+          #- "1.10"
+          #- "1.11"
           - "1.12"
           # - 'nightly'
         os:
@@ -97,7 +97,7 @@ jobs:
           - "ifrt"
     uses: ./.github/workflows/CommonCI.yml
     with:
-      julia_version: "1.10"
+      julia_version: "1.12"
       os: "ubuntu-24.04"
       runtime: ${{ matrix.runtime }}
       test_args: ${{ matrix.test_group == 'core' && 'core plugins' || matrix.test_group }}
diff --git a/Project.toml b/Project.toml
index 1eeb5b4b2f..eaafa5cc2e 100644
--- a/Project.toml
+++ b/Project.toml
@@ -23,6 +23,7 @@ LLVM = "929cbde3-209d-540e-8aea-75f648917ca0"
 LLVMOpenMP_jll = "1d63c593-3942-5779-bab2-d838dc0a180e"
 Libdl = "8f399da3-3557-5675-b5ff-fb832c97cbdb"
 LinearAlgebra = "37e2e46d-f89d-539d-b4ee-838fcccc9c8e"
+NestedNumbers = "1f6363f3-4ba7-41a3-bcac-d685ef427933"
 OrderedCollections = "bac558e1-5e72-5ebc-8fee-abe8a469f55d"
 PrecompileTools = "aea7be01-6a6a-4083-8856-8a6e6704d82a"
 Preferences = "21216c6a-2e73-6563-6e65-726566657250"
@@ -67,6 +68,7 @@ YaoBlocks = "418bc28f-b43b-5e0b-a6e7-61bbc1a2c1df"
 Zygote = "e88e6eb3-aa80-5325-afca-941959d7151f"
 
 [sources]
+NestedNumbers = {url = "https://github.com/JuliaMath/NestedNumbers.jl"}
 ReactantCore = {path = "lib/ReactantCore"}
 
 [extensions]
@@ -124,6 +126,7 @@ MCMCDiagnosticTools = "0.3.11"
 MPI = "0.20"
 NNlib = "0.9.26"
 NPZ = "0.4"
+NestedNumbers = "0.1"
 OffsetArrays = "1"
 OneHotArrays = "0.2.10"
 OrderedCollections = "1.1"
diff --git a/docs/Project.toml b/docs/Project.toml
index 3de01d2f95..97ba2e41de 100644
--- a/docs/Project.toml
+++ b/docs/Project.toml
@@ -11,9 +11,13 @@ ReactantCore = "a3311ec8-5e00-46d5-b541-4f83e724a433"
 Test = "8dfed614-e22c-5e08-85e1-65c5234f0b40"
 
 [sources]
+NestedNumbers = {url = "https://github.com/JuliaMath/NestedNumbers.jl"}
 Reactant = {path = ".."}
 ReactantCore = {path = "../lib/ReactantCore"}
 
 [compat]
 Documenter = "1.4.1"
 DocumenterVitepress = "0.2"
+
+[extras]
+NestedNumbers = "1f6363f3-4ba7-41a3-bcac-d685ef427933"
diff --git a/src/Reactant.jl b/src/Reactant.jl
index 57ba65d442..8703dae9e1 100644
--- a/src/Reactant.jl
+++ b/src/Reactant.jl
@@ -12,6 +12,8 @@ using Libdl: Libdl
 using Reactant_jll: Reactant_jll
 using LLVMOpenMP_jll: LLVMOpenMP_jll
 
+import NestedNumbers
+
 using Adapt: Adapt, WrappedArray
 using GPUArraysCore: GPUArraysCore, @allowscalar, allowscalar
 
diff --git a/src/Types.jl b/src/Types.jl
index 948765684d..6ccb4e112c 100644
--- a/src/Types.jl
+++ b/src/Types.jl
@@ -1,6 +1,4 @@
-abstract type RNumber{T<:ReactantPrimitive} <: Number end
-
-abstract type AbstractConcreteNumber{T} <: RNumber{T} end
+abstract type AbstractConcreteNumber{T<:ReactantPrimitive} <: NestedNumbers.RemoteNumber{T} end
 
 abstract type RArray{T,N} <: DenseArray{T,N} end
 
@@ -38,7 +36,7 @@ end
 @leaf MissingTracedValue
 
 ## TracedRNumber
-mutable struct TracedRNumber{T} <: RNumber{T}
+mutable struct TracedRNumber{T<:ReactantPrimitive} <: NestedNumbers.OpaqueNumber{T}
     paths::Tuple
     mlir_data::Union{Nothing,MLIR.IR.Value}
 
@@ -52,6 +50,8 @@ mutable struct TracedRNumber{T} <: RNumber{T}
     end
 end
 
+const RNumber{T<:ReactantPrimitive} = Union{AbstractConcreteNumber{T},TracedRNumber{T}}
+
 Base.elsize(::Type{TracedRNumber{T}}) where {T} = sizeof(T)
 Base.elsize(::Type{RNumber{T}}) where {T} = sizeof(T)
 Base.elsize(::Type{<:AbstractConcreteNumber{T}}) where {T} = sizeof(T)
diff --git a/test/Project.toml b/test/Project.toml
index 6f9560ce9a..4e42cc41d3 100644
--- a/test/Project.toml
+++ b/test/Project.toml
@@ -43,6 +43,7 @@ Test = "8dfed614-e22c-5e08-85e1-65c5234f0b40"
 Zygote = "e88e6eb3-aa80-5325-afca-941959d7151f"
 
 [sources]
+NestedNumbers = {url = "https://github.com/JuliaMath/NestedNumbers.jl"}
 Reactant = {path = ".."}
 
 [compat]
@@ -85,4 +86,5 @@ Test = "1.10"
 Zygote = "0.7"
 
 [extras]
+NestedNumbers = "1f6363f3-4ba7-41a3-bcac-d685ef427933"
 Reactant_jll = "0192cb87-2b54-54ad-80e0-3be72ad8a3c0"