diff --git a/.gitattributes b/.gitattributes
new file mode 100644
index 00000000..887a2c18
--- /dev/null
+++ b/.gitattributes
@@ -0,0 +1,2 @@
+# SCM syntax highlighting & preventing 3-way merges
+pixi.lock merge=binary linguist-language=YAML linguist-generated=true
diff --git a/.gitignore b/.gitignore
index bed468d7..40b5a097 100644
--- a/.gitignore
+++ b/.gitignore
@@ -23,3 +23,6 @@ dev/profiles
 .pre-commit-config.yaml
 cufile.log
 .codex
+# pixi environments
+.pixi/*
+!.pixi/config.toml
diff --git a/bench/report.py b/bench/report.py
index 6fddb196..c81a973a 100755
--- a/bench/report.py
+++ b/bench/report.py
@@ -75,6 +75,8 @@ def _stage_table(r: Results) -> Table:
     t.add_column("stage", style="cyan", no_wrap=True)
     t.add_column("unit", style="dim", no_wrap=True)
     t.add_column("GB/s_in", justify="right")
+    t.add_column("GB/s_out", justify="right")
+    t.add_column("load%", justify="right")
     t.add_column("ms_total", justify="right")
     t.add_column("ms_avg", justify="right")
     t.add_column("ms_best", justify="right")
@@ -109,14 +111,18 @@ def _stage_table(r: Results) -> Table:
         "pop_wait": "dim",
     }
 
+    wall_ms = r.timings_ms.wall
     for s in r.stages:
         secs = s.ms_total / 1e3
         c = color.get(s.name, "white")
         u = unit_style.get(s.name, "dim")
+        load = f"{100 * s.ms_total / wall_ms:.0f}" if wall_ms > 0 else "-"
         t.add_row(
             Text(s.name, style=c),
             Text(s.unit, style=u),
             _fmt_gbps(s.input_bytes, secs),
+            _fmt_gbps(s.output_bytes, secs),
+            load,
             _fmt_ms(s.ms_total),
             _fmt_ms(s.ms_avg) if s.count else "-",
             _fmt_ms(s.ms_best) if s.count else "-",
diff --git a/pyproject.toml b/pyproject.toml
index 5ade4a39..9e7d6f6b 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -106,3 +106,20 @@ exclude_lines = [
 ]
 show_missing = true
 skip_covered = true
+
+# ---- pixi -------------------------------------------------------------
+
+[tool.pixi.workspace]
+channels = ["conda-forge"]
+platforms = ["linux-64"]
+
+[tool.pixi.pypi-dependencies]
+damacy = { path = ".", editable = true }
+
+[tool.pixi.environments]
+default = { solve-group = "default" }
+dev = { features = ["dev"], solve-group = "default" }
+docs = { features = ["docs"], solve-group = "default" }
+gpu = { features = ["gpu"], solve-group = "default" }
+
+[tool.pixi.tasks]