diff --git a/Cargo.lock b/Cargo.lock
index a01ed7a..c412e31 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -334,12 +334,9 @@ dependencies = [
  "image",
  "imageproc",
  "indexmap",
- "itertools",
  "lazy_static",
  "log",
- "lru",
  "more-asserts",
- "natord",
  "ndarray",
  "num",
  "rand 0.8.5",
@@ -350,13 +347,26 @@ dependencies = [
  "spirv-std-macros",
  "spirv_backend",
  "spirv_backend_runner",
- "structopt",
  "threadpool",
  "typetag",
  "wgpu",
  "y4m",
 ]
 
+[[package]]
+name = "coremem_post"
+version = "0.1.0"
+dependencies = [
+ "bincode",
+ "coremem",
+ "crossterm",
+ "itertools",
+ "lru",
+ "natord",
+ "rayon",
+ "structopt",
+]
+
 [[package]]
 name = "crc32fast"
 version = "1.3.2"
diff --git a/Cargo.toml b/Cargo.toml
index fa81d6e..1c9fccc 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -5,6 +5,7 @@ members = [
     "crates/spirv_backend",
     "crates/spirv_backend_builder",
     "crates/spirv_backend_runner",
+    "crates/post",
 
     "crates/applications/buffer_proto5",
     "crates/applications/multi_core_inverter",
diff --git a/README.md b/README.md
index 6d74986..8a5c7ec 100644
--- a/README.md
+++ b/README.md
@@ -121,7 +121,7 @@ allowing you to dig further into the simulation in an _interactive_ way (versus
 renderer used in the `wavefront` example):
 
 ```rust
-// serialize frames for later viewing with `cargo run --release --bin viewer`
+// serialize frames for later viewing with `cargo run -p coremem_post --release --bin viewer`
 driver.add_serializer_renderer(&*format!("{}frame-", prefix), 36000, None);
 ```
 
@@ -134,7 +134,7 @@ $ cargo run --release --example sr_latch
 and then investigate the results with
 
 ```
-$ pushd crates/coremem ; cargo run --bin viewer ../../out/applications/sr_latch ; popd
+$ cargo run -p coremem_post --bin viewer ./out/applications/sr_latch
 ```
 ![screencapture of Viewer for SR latch at t=2.8ns. it shows two rings spaced horizontally, with arrows circulating them](readme_images/sr_latch_EzBxy_2800ps.png "SR latch at t=2.8ns")
 
@@ -252,7 +252,7 @@ measurements include ([src/meas.rs](crates/coremem/src/meas.rs)):
 output targets include ([src/render.rs](crates/coremem/src/render.rs)):
 - `ColorTermRenderer`: renders 2d-slices in real-time to the terminal.
 - `Y4MRenderer`: outputs 2d-slices to an uncompressed `y4m` video file.
-- `SerializerRenderer`: dumps the full 3d simulation state to disk. parseable after the fact with [src/bin/viewer.rs](crates/coremem/src/bin/viewer.rs).
+- `SerializerRenderer`: dumps the full 3d simulation state to disk. parseable after the fact with [src/bin/viewer.rs](crates/post/src/bin/viewer.rs).
 - `CsvRenderer`: dumps the output of all measurements into a `csv` file.
 
 historically there was also a plotly renderer, but that effort was redirected into developing the viewer tool better.
diff --git a/crates/coremem/Cargo.toml b/crates/coremem/Cargo.toml
index b9cb829..7c001bb 100644
--- a/crates/coremem/Cargo.toml
+++ b/crates/coremem/Cargo.toml
@@ -25,19 +25,15 @@ futures = "0.3"  # MIT or Apache 2.0
 image = "0.24"  # MIT
 imageproc = "0.23"  # MIT
 indexmap = "1.9"  # MIT or Apache 2.0
-itertools = "0.10"  # MIT or Apache 2.0
 lazy_static = "1.4"  # MIT or Apache 2.0
 log = "0.4"  # MIT or Apache 2.0
-lru = "0.7"  # MIT
 more-asserts = "0.3"  # CC0-1.0
-natord = "1.0"  # MIT
 ndarray = { version = "0.15", features = ["rayon", "serde"] }  # MIT or Apache 2.0
 num = "0.4"  # MIT or Apache 2.0
 # plotly = { version = "0.6", features = ["kaleido", "plotly_ndarray"], path = "../plotly/plotly" }
 rand = "0.8"  # MIT or Apache 2.0
 rayon = "1.5"  # MIT or Apache 2.0
 serde = "1.0"  # MIT or Apache 2.0
-structopt = "0.3"  # MIT or Apache 2.0
 threadpool = "1.8"  # MIT or Apache 2.0
 typetag = "0.2"  # MIT or Apache 2.0
 y4m = "0.7"  # MIT
diff --git a/crates/coremem/src/lib.rs b/crates/coremem/src/lib.rs
index c313d9a..78f0ed6 100644
--- a/crates/coremem/src/lib.rs
+++ b/crates/coremem/src/lib.rs
@@ -11,7 +11,6 @@ pub mod driver;
 pub mod geom;
 pub mod mat;
 pub mod meas;
-pub mod post;
 pub mod real;
 pub mod render;
 pub mod sim;
diff --git a/crates/post/Cargo.toml b/crates/post/Cargo.toml
new file mode 100644
index 0000000..c97429f
--- /dev/null
+++ b/crates/post/Cargo.toml
@@ -0,0 +1,15 @@
+[package]
+name = "coremem_post"
+version = "0.1.0"
+authors = ["Colin <colin@uninsane.org>"]
+edition = "2021"
+
+[dependencies]
+coremem = { path = "../coremem" }
+crossterm = "0.24"  # MIT
+bincode = "1.3"  # MIT
+itertools = "0.10"  # MIT or Apache 2.0
+lru = "0.7"  # MIT
+natord = "1.0"  # MIT
+rayon = "1.5"  # MIT or Apache 2.0
+structopt = "0.3"  # MIT or Apache 2.0
diff --git a/crates/coremem/src/bin/csv.rs b/crates/post/src/bin/csv.rs
similarity index 91%
rename from crates/coremem/src/bin/csv.rs
rename to crates/post/src/bin/csv.rs
index 5633158..7ab294c 100644
--- a/crates/coremem/src/bin/csv.rs
+++ b/crates/post/src/bin/csv.rs
@@ -1,4 +1,5 @@
-use coremem::post::{Loader, LoaderCache};
+// use crate::{Loader, LoaderCache};
+use coremem_post::{Loader, LoaderCache};
 use std::path::PathBuf;
 use structopt::StructOpt;
 
diff --git a/crates/coremem/src/bin/decimate.rs b/crates/post/src/bin/decimate.rs
similarity index 90%
rename from crates/coremem/src/bin/decimate.rs
rename to crates/post/src/bin/decimate.rs
index bcf77e1..362c9f6 100644
--- a/crates/coremem/src/bin/decimate.rs
+++ b/crates/post/src/bin/decimate.rs
@@ -1,4 +1,5 @@
-use coremem::post::Loader;
+// use crate::Loader;
+use coremem_post::Loader;
 use std::fs;
 use std::path::PathBuf;
 use structopt::StructOpt;
diff --git a/crates/coremem/src/bin/viewer.rs b/crates/post/src/bin/viewer.rs
similarity index 97%
rename from crates/coremem/src/bin/viewer.rs
rename to crates/post/src/bin/viewer.rs
index 2587bac..9a16e1e 100644
--- a/crates/coremem/src/bin/viewer.rs
+++ b/crates/post/src/bin/viewer.rs
@@ -1,4 +1,4 @@
-use coremem::post::{Loader, Viewer};
+use coremem_post::{Loader, Viewer};
 use std::path::PathBuf;
 use std::time::Duration;
 use structopt::StructOpt;
diff --git a/crates/coremem/src/post.rs b/crates/post/src/lib.rs
similarity index 98%
rename from crates/coremem/src/post.rs
rename to crates/post/src/lib.rs
index 495b29a..c316d53 100644
--- a/crates/coremem/src/post.rs
+++ b/crates/post/src/lib.rs
@@ -1,7 +1,7 @@
 //! Post-processing tools
-use crate::meas::AbstractMeasurement;
-use crate::render::{ColorTermRenderer, Renderer as _, RenderConfig, SerializedFrame};
-use crate::sim::{SimState, StaticSim};
+use coremem::meas::AbstractMeasurement;
+use coremem::render::{ColorTermRenderer, Renderer as _, RenderConfig, SerializedFrame};
+use coremem::sim::{SimState, StaticSim};
 
 use itertools::Itertools as _;
 use lru::LruCache;