diff --git a/consistency.md b/consistency.md
index b683f889..d5ccccb8 100644
--- a/consistency.md
+++ b/consistency.md
@@ -32,3 +32,36 @@ Only export the functions which should be called externally.
 ## Namespaces
 
 Avoid `\d` namespace switches.
+
+## Injectable Dependencies
+
+Pass dependencies as a single dict to `init` — this keeps the signature stable as more injectables are added. All dependencies are required; `init` must error immediately with a clear message if any are absent. Store each injected function in `.z.m` and always call it through `.z.m` at call sites.
+
+```q
+/ mymodule.q
+init:{[deps]
+  / deps - `log!(logdict) or `log`timer!(logdict;timerdict)
+  /   `log: `info`warn`error!({[c;m]};{[c;m]};{[c;m]}) - required
+  / examples:
+  /   mymodule.init[enlist[`log]!enlist logdep]
+  logdict:$[99h=type deps;$[(`log in key deps) and not (::)~deps`log;deps`log;()!()];()!()];
+  if[not count logdict;
+    '"di.mymodule: log dependency is required; pass `info`warn`error functions - see di.log or refer to confluence documentation";
+  ];
+  .z.m.loginfo:logdict`info;
+  .z.m.logwarn:logdict`warn;
+  .z.m.logerr:logdict`error;
+  };
+
+myfunc:{[x]
+  .z.m.loginfo[`mymodule;"processing ",string x];
+  };
+```
+
+Callers provide a dict of functions. Use `di.log` if no custom logger is needed:
+
+```q
+log:use`di.log
+logdep:`info`warn`error!(log.info;log.warn;log.error)
+mymodule.init[enlist[`log]!enlist logdep]
+```
diff --git a/di/compression/compression.md b/di/compression/compression.md
index cb7b8688..227beb0d 100644
--- a/di/compression/compression.md
+++ b/di/compression/compression.md
@@ -18,9 +18,13 @@
 
 ---
 
-## memo: Dependencies
+## Dependencies
 
-- KX log module
+Passed as a dictionary to `init`. The `log` dependency is required — `init` throws if absent.
+
+| Key | Required | Type | Description |
+|---|---|---|---|
+| `` `log `` | yes | dict | Logger with keys `` `info`warn`error ``, each `{[c;m]}`. See `di.log` for a default implementation. |
 
 ---
 
@@ -58,7 +62,8 @@ depth, 10,default, 1, 17, 8
 ## :wrench: Functions
 
 | Function           | Description                                                    |
-|--------------------|----------------------------------------------------------------| 
+|--------------------|----------------------------------------------------------------|
+|`init`              | Initialise module with injected log dependency                 |
 |`showcomp`          | Load specified compression config and show compression details for files to be compressed |
 |`getcompressioncsv` | get function to return loaded compressioncsv config            |
 |`compressmaxage`    | Compress files according to config up to the specified max age |
@@ -72,6 +77,11 @@ depth, 10,default, 1, 17, 8
 ```q
 // Include compression module in a process
 cmp:use`di.compression
+logdep:`info`warn`error!(
+  {[c;m] -1 "INFO  [",string[c],"] ",m;};
+  {[c;m] -1 "WARN  [",string[c],"] ",m;};
+  {[c;m] -2 "ERROR [",string[c],"] ",m;});
+cmp.init[enlist[`log]!enlist logdep]
 
 // View dictionary of functions
 cmp
diff --git a/di/compression/compression.q b/di/compression/compression.q
index a7a626ed..a655d049 100644
--- a/di/compression/compression.q
+++ b/di/compression/compression.q
@@ -3,17 +3,17 @@ checkcsv:{[csvtab;path]
   / include snappy (3) for version 3.4 or after
   allowedalgos:0 1 2,$[.z.K>=3.4;3;()];
   if[0b~all colscheck:`table`minage`column`calgo`cblocksize`clevel in (cols csvtab);
-    log.error[err:path,": Compression config has incorrect column layout at column(s): ", (" " sv string where not colscheck), ". Should be `table`minage`column`calgo`cblocksize`clevel."];'err];
+    .z.m.logerr[`compression;err:path,": Compression config has incorrect column layout at column(s): ", (" " sv string where not colscheck), ". Should be `table`minage`column`calgo`cblocksize`clevel."];'err];
   if[count checkalgo:exec i from csvtab where not calgo in allowedalgos;
-    log.error[err:path,": Compression config has incorrect compression algo in row(s): ",(", " sv string -1_allowedalgos)," or ",(string last allowedalgos),"."];'err];
+    .z.m.logerr[`compression;err:path,": Compression config has incorrect compression algo in row(s): ",(", " sv string -1_allowedalgos)," or ",(string last allowedalgos),"."];'err];
   if[count checkblock:exec i from csvtab where calgo in 1 2, not cblocksize in 12 + til 9;
-    log.error[err:path,": Compression config has incorrect compression blocksize at row(s): ", (" " sv string checkblock), ". Should be between 12 and 19."];'err];
+    .z.m.logerr[`compression;err:path,": Compression config has incorrect compression blocksize at row(s): ", (" " sv string checkblock), ". Should be between 12 and 19."];'err];
   if[count checklevel: exec i from csvtab where calgo in 2, not clevel in til 10;
-    log.error[err:path,": Compression config has incorrect compression level at row(s): ", (" " sv string checklevel), ". Should be between 0 and 9."];'err];
+    .z.m.logerr[`compression;err:path,": Compression config has incorrect compression level at row(s): ", (" " sv string checklevel), ". Should be between 0 and 9."];'err];
   if[.z.o like "w*"; if[count rowwin:where ((csvtab[`cblocksize] < 16) & csvtab[`calgo] > 0);
-    log.error[err:path,": Compression config has incorrect compression blocksize for windows at row: ", (" " sv string rowwin), ". Must be more than or equal to 16."];'err]];
+    .z.m.logerr[`compression;err:path,": Compression config has incorrect compression blocksize for windows at row: ", (" " sv string rowwin), ". Must be more than or equal to 16."];'err]];
   if[(any nulls: any null (csvtab[`column];csvtab[`table];csvtab[`minage];csvtab[`clevel]))>0;
-    log.error[err:path,": Compression config has empty cells in column(s): ", (" " sv string `column`table`minage`clevel where nulls)];'err];
+    .z.m.logerr[`compression;err:path,": Compression config has empty cells in column(s): ", (" " sv string `column`table`minage`clevel where nulls)];'err];
   };
 
 / Empty compressioncsv table defined for edge case where a bad config is loaded first attempt
@@ -22,8 +22,8 @@ compressioncsv:([] table:`$();minage:`int$();column:`$();calgo:`int$();cblocksiz
 loadcsv:{[inputcsv]
   / accepts hsym path as argument
   / loads and checks compression config
-  loadedcsv:@[{log.info["Opening ", x];("SISIII"; enlist ",") 0:"S"$x}; (string inputcsv); {log.error["failed to open ", (x)," : ",y];'y}[string inputcsv]];
-  res:.[checkcsv;(loadedcsv;string inputcsv);{log.error["failed to load csv due to error: ",x];:0b}];
+  loadedcsv:@[{.z.m.loginfo[`compression;"Opening ", x];("SISIII"; enlist ",") 0:"S"$x}; (string inputcsv); {[p;e].z.m.logerr[`compression;"failed to open ", p," : ",e];'e}[string inputcsv]];
+  res:.[checkcsv;(loadedcsv;string inputcsv);{.z.m.logerr[`compression;"failed to load csv due to error: ",x];:0b}];
   if[res~0b;:(::)];
   compressioncsv::loadedcsv;
   };
@@ -57,7 +57,7 @@ showcomp:{[hdbpath;csvpath;maxage]
   / load config from csvpath and display summary of files to be compressed and how
   / load csv
   loadcsv[$[10h = type csvpath;hsym `$csvpath;hsym csvpath]];
-  log.info["compression: scanning hdb directory structure"];
+  .z.m.loginfo[`compression;"compression: scanning hdb directory structure"];
   / build paths table and fill age
   $[count key (` sv hdbpath,`$"par.txt");
     pathstab:update 0W^age from (,/) hdbstructure'[hsym each `$(read0 ` sv hdbpath,`$"par.txt")];
@@ -80,7 +80,7 @@ showcomp:{[hdbpath;csvpath;maxage]
   t: t lj a;
   / in case of no default specified, delete from the table where no data is joined on
   t: delete from t where calgo=0Nj,cblocksize=0Nj,clevel=0Nj;
-  log.info["compression: getting current size of each file up to a maximum age of ",string maxage];
+  .z.m.loginfo[`compression;"compression: getting current size of each file up to a maximum age of ",string maxage];
   update currentsize:hcount each fullpath from select from t where age within (compressage;maxage)
   };
 
@@ -106,13 +106,13 @@ statstabupdate:{[file;algo;sizeuncomp;compressionvaluepre]
   };
 
 singlethreadcompress:{[table]
-  log.info["compression: Single threaded process, compress applied sequentially"];
+  .z.m.loginfo[`compression;"compression: Single threaded process, compress applied sequentially"];
   {compress[x `fullpath;x `calgo;x `cblocksize;x `clevel; x `currentsize];
     cleancompressed[x `fullpath;x `calgo]} each table;
   };
  
 multithreadcompress:{[table]
-  log.info["compression: Multithreaded process, compress applied in parallel "];
+  .z.m.loginfo[`compression;"compression: Multithreaded process, compress applied in parallel"];
   {compress[x `fullpath;x `calgo;x `cblocksize;x `clevel; x `currentsize]} peach table;
   {cleancompressed[x `fullpath;x `calgo]} each table;
   };
@@ -139,9 +139,9 @@ summarystats:{
   totalcompratio: (sum compressedfiles`uncompressedLength) % sum compressedfiles`compressedLength;
   memoryusage:((sum decompressedfiles`uncompressedLength) - sum decompressedfiles`compressedLength) % 2 xexp 20;
   totaldecompratio: neg (sum decompressedfiles`compressedLength) % sum decompressedfiles`uncompressedLength;
-  log.info["compression: Memory savings from compression: ", .Q.f[2;memorysavings], "MB. Total compression ratio: ", .Q.f[2;totalcompratio],"."];
-  log.info["compression: Additional memory used from de-compression: ",.Q.f[2;memoryusage], "MB. Total de-compression ratio: ", .Q.f[2;totaldecompratio],"."];
-  log.info["compression: Check getstatstab[] for info on each file."];
+  .z.m.loginfo[`compression;"compression: Memory savings from compression: ", .Q.f[2;memorysavings], "MB. Total compression ratio: ", .Q.f[2;totalcompratio],"."];
+  .z.m.loginfo[`compression;"compression: Additional memory used from de-compression: ",.Q.f[2;memoryusage], "MB. Total de-compression ratio: ", .Q.f[2;totaldecompratio],"."];
+  .z.m.loginfo[`compression;"compression: Check getstatstab[] for info on each file."];
   };
 
 compress:{[filetoCompress;algo;blocksize;level;sizeuncomp]
@@ -149,12 +149,12 @@ compress:{[filetoCompress;algo;blocksize;level;sizeuncomp]
   / compress or decompress as appropriate:
   cmp:$[algo=0;"de";""];
   $[((0 = count -21!filetoCompress) & not 0 = algo)|((not 0 = count -21!filetoCompress) & 0 = algo);
-    [log.info["compression: ",cmp,"compressing ","file ", (string filetoCompress), " with algo: ", (string algo), ", blocksize: ", (string blocksize), ", and level: ", (string level), "."];
+    [.z.m.loginfo[`compression;"compression: ",cmp,"compressing ","file ", (string filetoCompress), " with algo: ", (string algo), ", blocksize: ", (string blocksize), ", and level: ", (string level), "."];
     / perform the compression/decompression
     -19!(filetoCompress;compressedFile;blocksize;algo;level);
     ];
     / if already compressed/decompressed, then log that and skip.
-    log.info["compression: file ", (string filetoCompress), " is already ",cmp,"compressed",". Skipping this file"]
+    .z.m.loginfo[`compression;"compression: file ", (string filetoCompress), " is already ",cmp,"compressed",". Skipping this file"]
   ]
   };
 
@@ -163,17 +163,17 @@ cleancompressed:{[filetoCompress;algo]
   cmp:$[algo=0;"de";""];
   / Verify compressed file exists 
   if[()~ key compressedFile;
-    log.info["compression: No compressed file present for the following file - ",string[filetoCompress]];
+    .z.m.loginfo[`compression;"compression: No compressed file present for the following file - ",string[filetoCompress]];
     :();
    ];
   / Verify compressed file's contents match original
   if[not ((get compressedFile)~sf:get filetoCompress) & (count -21!compressedFile) or algo=0;
-     log.info["compression: ",cmp,"compressed ","file ",string[compressedFile]," doesn't match original. Deleting new file"];
+     .z.m.loginfo[`compression;"compression: ",cmp,"compressed ","file ",string[compressedFile]," doesn't match original. Deleting new file"];
      hdel compressedFile;
      :();
    ];
   / Given above two checks satisfied run the delete of old and rename compressed to original name 
-  log.info["compression: File ",cmp,"compressed ",string[filetoCompress]," successfully; matches orginal. Deleting original."];
+  .z.m.loginfo[`compression;"compression: File ",cmp,"compressed ",string[filetoCompress]," successfully; matches original. Deleting original."];
   system "r ", (last ":" vs string compressedFile)," ", last ":" vs string filetoCompress;
   / move the hash files too.
   hashfilecheck[compressedFile;filetoCompress;sf];
@@ -185,8 +185,21 @@ hashfilecheck:{[compressedFile;filetoCompress;sf]
   / check for double hash file if nested data contains symbol vector/atom
   $[3.6<=.z.K;
     if[77 = type sf; system "r ", (last ":" vs string compressedFile),"# ", (last ":" vs string filetoCompress),"#";
-      .[{system "r ", (last ":" vs string x),"## ", (last ":" vs string y),"##"};(compressedFile;filetoCompress);log.info["compression: File does not have enumeration domain"]]];
+      .[{system "r ", (last ":" vs string x),"## ", (last ":" vs string y),"##"};(compressedFile;filetoCompress);{.z.m.loginfo[`compression;"compression: File does not have enumeration domain"]}]];
     / if running below 3.6, nested list types will be 77h+t and will not have double hash file    
     if[78 <= type sf; system "r ", (last ":" vs string compressedFile),"# ", (last ":" vs string filetoCompress),"#"]
   ]
   };
+
+init:{[deps]
+  / deps - `log!(logdict) where logdict is `info`warn`error!({[c;m]};{[c;m]};{[c;m]}) - required
+  / examples:
+  /   cmp.init[enlist[`log]!enlist logdep]
+  logdict:$[99h=type deps;$[(`log in key deps) and not (::)~deps`log;deps`log;()!()];()!()];
+  if[not count logdict;
+    '"di.compression: log dependency is required; pass `info`warn`error functions - see di.log or refer to confluence documentation";
+  ];
+  .z.m.loginfo:logdict`info;
+  .z.m.logwarn:logdict`warn;
+  .z.m.logerr:logdict`error;
+  };
diff --git a/di/compression/init.q b/di/compression/init.q
index 67ec81f4..17c47826 100644
--- a/di/compression/init.q
+++ b/di/compression/init.q
@@ -1,8 +1,3 @@
-/ Load core functionality into root module namespace
 \l ::compression.q
 
-/ Load KX log module - needed for log.info and log.error
-logger:use`kx.log
-log:logger.createLog[]
-
-export:([showcomp;getcompressioncsv;compressmaxage;docompression;getstatstab])
+export:([init;showcomp;getcompressioncsv;compressmaxage;docompression;getstatstab])
diff --git a/di/compression/test.csv b/di/compression/test.csv
index b2824fa2..362062e0 100644
--- a/di/compression/test.csv
+++ b/di/compression/test.csv
@@ -1,6 +1,9 @@
 action,ms,bytes,lang,code,repeat,minver,comment
 
-before,0,0,q,cmp:use`di.compression,1,,Initialize module
+before,0,0,q,cmp:use`di.compression,1,,load module
+before,0,0,q,mocklog:`info`warn`error!({[c;m]};{[c;m]};{[c;m]}),1,,define no-op mock logger
+fail,0,0,q,cmp.init[(::)],1,,init without log dep throws
+run,0,0,q,cmp.init[enlist[`log]!enlist mocklog],1,,init with injected logger
 
 before,0,0,q,trade:([]date:asc 100#.z.d - til 10;time:100#asc 09:30+10?00:10:00;sym:100?`AAPL`GOOGL`MSFT`TSLA`NVDA`AMD;price:(5*100?10000)%100;size:5*100?100;side:100?`B`S;src:100?`NYSE`NASDAQ),1,,Create mock trade table
 before,0,0,q,quote:([]date:asc 100#.z.d - til 10;time:100#asc 09:30+10?00:10:00;sym:100?`AAPL`GOOGL`MSFT`TSLA`NVDA`AMD;bid:(5*100?10000)%100;ask:(5*100?10000)%100;bsize:5*100?100;asize:5*100?100;src:100?`NYSE`NASDAQ),1,,Create mock quote table