diff --git a/adix/bist.nim b/adix/bist.nim
index 9f48567..d548233 100644
--- a/adix/bist.nim
+++ b/adix/bist.nim
@@ -130,7 +130,7 @@ proc quantile*[T](t: Bist[T], q: float): float {.inline.} =
   fL * iL.float + (1 - fL) * iH.float
 
 when isMainModule:
-  import cligen, strutils
+  import cligen, std/strutils
   when not declared(addFloat): import std/formatfloat
   type ct = uint16
   proc tbist(verb=false, parzen=false, thresh=0.03, num=16, args: seq[int]):int=
diff --git a/adix/cpuCT.nim b/adix/cpuCT.nim
index de1adb2..b438f70 100644
--- a/adix/cpuCT.nim
+++ b/adix/cpuCT.nim
@@ -3,7 +3,7 @@
 ## lets us probe a build-time system for all pre-defined C preprocessor macros
 ## in one execution.  We then postprocess these into a set of flags for Nim
 ## compile-time `when` checks to make "fall back" easy/natural.
-from strutils import contains
+from std/strutils import contains
 
 const ccDumpMacro {.used.} = " -dM -E -x c - </dev/null"
 const ccPreDefs* =
diff --git a/adix/cumsum.nim b/adix/cumsum.nim
index 0b11a8c..de0e666 100644
--- a/adix/cumsum.nim
+++ b/adix/cumsum.nim
@@ -115,7 +115,7 @@ proc cumsum*[T](c: ptr T, n: uint) {.inline.} =
   cumsum(cast[ptr UncheckedArray[T]](c), n)
 
 when isMainModule:
-  import random, times, stats, cligen
+  import std/[random, times, stats], cligen
   when not declared(stderr): import std/[syncio, formatfloat]
 
   proc gen[T](x: var openArray[T]; low, range: int) =
diff --git a/adix/lghisto.nim b/adix/lghisto.nim
index 3ffbceb..e3c83ac 100644
--- a/adix/lghisto.nim
+++ b/adix/lghisto.nim
@@ -28,7 +28,7 @@
 ## decaying memory are not possible since FP arithmetic kind of breaks BISTs.
 
 when not declared(addFloat): import std/formatfloat
-import adix/bist, math
+import adix/bist, std/math
 type
   LgHisto*[C] = object  ## Log-spaced histogram with `Bist[C]` backing
     n: int              # number of bins
@@ -152,7 +152,7 @@ when isMainModule:
       for q in qs: echo "q",q,": ",lh.quantile(q)
     import cligen; dispatch lghist
   else:
-    import random, times; randomize()
+    import std/[random, times]; randomize()
     var data: seq[float32]
     var res = newSeqOfCap[float32](9)
     const N = 750_000
diff --git a/adix/metab.nim b/adix/metab.nim
index 2431f4f..59d8364 100644
--- a/adix/metab.nim
+++ b/adix/metab.nim
@@ -1,7 +1,7 @@
 ## This module provides an easy way to do compile-time switched impl swaps for
 ## various table/set reprs with various compile-time switched defaults.  You
 ## should really just learn how to use `LPTabz[..]` directly, though.
-import macros, strformat
+import core/macros, std/strformat
 
 when defined(axRehash):
   let rDefault = true
@@ -46,8 +46,8 @@ proc toSet*[K](keys: openArray[K], dups=false): Set[K] =
   else:
     for k in keys: result.incl k""")
 
-when defined(axStdlib):   #NOTE: stdlib version cannot ctrl, e.g. `initialSize`
-  import tables, sets     #      when client just declares `var x: Tab`.
+when defined(axStdlib):     #NOTE: stdlib version cannot ctrl, eg. `initialSize`
+  import std/[tables, sets] #      when client just declares `var x: Tab`.
   export tables, sets
   type Tab*[K,V] = Table[K,V]
   type Set*[K]   = HashSet[K]
diff --git a/adix/mvstat.nim b/adix/mvstat.nim
index 07586cd..b5542cb 100644
--- a/adix/mvstat.nim
+++ b/adix/mvstat.nim
@@ -12,8 +12,8 @@
 ## I.e., it can perfectly "forget" a large spike when it leaves a window.
 
 when not declared(addFloat): import std/objectdollar
-from math         import sqrt, sum, `^`
-from strutils     import formatFloat, ffDefault
+from std/math     import sqrt, sum, `^`
+from std/strutils import formatFloat, ffDefault
 when defined(useCligen): from cligen/strUt import fmtUncertainMerged
 else:
   when not declared(addFloat): import std/formatfloat
diff --git a/adix/nsort.nim b/adix/nsort.nim
index 1c31e91..5a8860d 100644
--- a/adix/nsort.nim
+++ b/adix/nsort.nim
@@ -472,7 +472,7 @@ template nsortBy*(x, field: untyped, b0=0): untyped =
     nsortByTag(x, field, b0)
 
 when isMainModule:
-  import random, times, stats, strutils, cligen
+  import std/[random, times, stats, strutils], cligen
 
   template timeIt(dtMin, norm: float; body: untyped) =
     let t0 = epochTime()
diff --git a/adix/tdigest.nim b/adix/tdigest.nim
index 7fd71e4..ec6f224 100644
--- a/adix/tdigest.nim
+++ b/adix/tdigest.nim
@@ -7,7 +7,7 @@
 ## just *intuit* histo(ln(x)), but that is a more subjective critique. }
 
 when not declared(addFloat): import std/formatfloat
-import math, algorithm
+import std/[math, algorithm]
 type
   Scale* = enum scLog           ## Other scales possible, but unimpl here
 
@@ -238,13 +238,13 @@ func cdf*(s: var DigesT, x: float): float =
 
 when isMainModule:
   when defined(test):
-    import os, strutils # Helpful to run against: -12 -8 -4 -1 0 1 4 8 12
+    import std/[os, strutils] # Helpful to run against: -12 -8 -4 -1 0 1 4 8 12
     var s = initDigesT(a=0.125, b=10.0, n=8)
     for i in 1 .. paramCount(): s.add parseFloat(paramStr(i))
     for q in [0.01, 0.05, 0.25, 0.50, 0.75, 0.95, 0.99]: echo s.quantile(q)
     echo "s: ", s
   else:
-    import random, times; randomize()
+    import std/[random, times]; randomize()
     var data: seq[float]
     var res = newSeqOfCap[float](9)
     const N = 750_000