diff --git a/docs/TapTrade_obs/.obsidian/workspace.json b/docs/TapTrade_obs/.obsidian/workspace.json
index cdfd631..c304016 100644
--- a/docs/TapTrade_obs/.obsidian/workspace.json
+++ b/docs/TapTrade_obs/.obsidian/workspace.json
@@ -11,14 +11,11 @@
             "id": "bdb9fd88a01a8909",
             "type": "leaf",
             "state": {
-              "type": "canvas",
+              "type": "markdown",
               "state": {
-                "file": "Research/Trade Pipelines/new concepts/concept pipeline 1.canvas",
-                "viewState": {
-                  "x": 464.8039744526603,
-                  "y": 155.81787780078812,
-                  "zoom": -0.45332428088833887
-                }
+                "file": "Research/Bitcoin fundamentals/Knowledge sources.md",
+                "mode": "source",
+                "source": false
               }
             }
           }
@@ -88,7 +85,7 @@
             "state": {
               "type": "backlink",
               "state": {
-                "file": "Research/Trade Pipelines/new concepts/concept pipeline 1.canvas",
+                "file": "Research/Bitcoin fundamentals/Knowledge sources.md",
                 "collapseAll": false,
                 "extraContext": false,
                 "sortOrder": "alphabetical",
@@ -105,7 +102,7 @@
             "state": {
               "type": "outgoing-link",
               "state": {
-                "file": "Research/Trade Pipelines/new concepts/concept pipeline 1.canvas",
+                "file": "Research/Bitcoin fundamentals/Knowledge sources.md",
                 "linksCollapsed": false,
                 "unlinkedCollapsed": true
               }
@@ -128,7 +125,7 @@
             "state": {
               "type": "outline",
               "state": {
-                "file": "Research/Trade Pipelines/new concepts/concept pipeline 1.canvas"
+                "file": "Research/Bitcoin fundamentals/Knowledge sources.md"
               }
             }
           }
@@ -151,11 +148,11 @@
   },
   "active": "bdb9fd88a01a8909",
   "lastOpenFiles": [
+    "Research/Trade Pipelines/new concepts/concept pipeline 1.canvas",
     "Research/Trade Pipelines/new concepts/concept locking script 1.canvas",
     "Research/Implementation/UI ideas.canvas",
     "Research/Implementation/Libraries.md",
     "Research/Implementation/CLI demonstrator architecture/demonstrator architecture.canvas",
-    "Research/Trade Pipelines/new concepts/concept pipeline 1.canvas",
     "Research/Trade Pipelines/Existing research.md",
     "Research/Trade Pipelines/current trade flow.canvas",
     "Research/Implementation/CLI demonstrator architecture",
diff --git a/docs/TapTrade_obs/Research/Bitcoin fundamentals/Knowledge sources.md b/docs/TapTrade_obs/Research/Bitcoin fundamentals/Knowledge sources.md
index fab3ed2..f5c75f1 100644
--- a/docs/TapTrade_obs/Research/Bitcoin fundamentals/Knowledge sources.md	
+++ b/docs/TapTrade_obs/Research/Bitcoin fundamentals/Knowledge sources.md	
@@ -24,6 +24,9 @@ Understanding the following BIPs is relevant for the project.
 * [Introduction to Taproot - Nicolas Dorier - short video](https://www.youtube.com/watch?v=I7HsXKgtD2I)
 * [Very good, practical introduction to coding taproot Transactions - Bitdevs LA](https://www.youtube.com/watch?v=E-HxgNkPB-8) 
 
+#### Workshop
+[Bitcoin Optech Schnorr Taproot Workshop](https://bitcoinops.org/en/schorr-taproot-workshop/)
+
 ### <u>Descriptors/Miniscript</u>
 
 We can use Descriptors/Miniscript to precisely and human readable describe the Transaction outputs of the escrow transaction pipeline. This improves readability and portability of the pipeline.
diff --git a/docs/TapTrade_obs/Research/Implementation/BDK.md b/docs/TapTrade_obs/Research/Implementation/BDK.md
new file mode 100644
index 0000000..1052d00
--- /dev/null
+++ b/docs/TapTrade_obs/Research/Implementation/BDK.md
@@ -0,0 +1,16 @@
+Loading from .env or environment:
+
+```
+use std::env;
+
+dotenv::from_filename(".env")?;
+let descriptor = env::var("DESCRIPTOR")?;
+```
+
+Creating/loading new Wallet:
+
+```
+use bdk::{Wallet, bitcoin::Network};
+
+
+```
\ No newline at end of file