diff --git a/add-service.md b/add-service.md
new file mode 100644
index 000000000..a61f756c7
--- /dev/null
+++ b/add-service.md
@@ -0,0 +1,28 @@
+# add service
+
+- [[push]] [[systemd]]
+  - [[go]] https://www.maxlaumeister.com/u/run-ipfs-on-boot-ubuntu-debian/
+    - create `example.service` in `/etc/system/system`
+    - `sudo systemctl start example`
+    - `sudo systemctl enable example`
+
+```
+[Unit]
+Description=IPFS daemon
+After=network.target
+
+[Service]
+User=ipfs
+Group=ipfs
+ExecStart=/usr/local/bin/ipfs daemon
+Restart=on-failure
+
+[Install]
+WantedBy=default.target
+```
+
+[//begin]: # "Autogenerated link references for markdown compatibility"
+[push]: push "Push"
+[systemd]: systemd "Systemd"
+[go]: go "Go"
+[//end]: # "Autogenerated link references"
\ No newline at end of file
diff --git a/journal/2021-03-31.md b/journal/2021-03-31.md
index 98889b8b8..549ed490f 100644
--- a/journal/2021-03-31.md
+++ b/journal/2021-03-31.md
@@ -3,6 +3,8 @@
 - [[reading alexander]] tonight
   - read [[notsof]]
   - fix [[apl]]
+  - fix [[ttwob]]
+- [[add service]]
 
 [//begin]: # "Autogenerated link references for markdown compatibility"
 [notsof]: ../notsof "Notsof"
diff --git a/the-timeless-way-of-building.md b/the-timeless-way-of-building.md
index e81b8d867..65a83bc21 100644
--- a/the-timeless-way-of-building.md
+++ b/the-timeless-way-of-building.md
@@ -3,13 +3,14 @@
 - [[pull]] [[ttwob]]
 - a [[book]]
   - [[by]] [[christopher alexander]]
-- [[ipfs]] QmZhvFuT6urnUG4pjJTDzmFWhTYkVpuzmJv4t9FvENLphs
+- [[ipfs]] ipfs://QmZhvFuT6urnUG4pjJTDzmFWhTYkVpuzmJv4t9FvENLphs
 - [[old]] https://via.hypothes.is/ipfs.io/ipfs/QmZhvFuT6urnUG4pjJTDzmFWhTYkVpuzmJv4t9FvENLphs
-- [[hypothesis]] https://via.hypothes.is/ipfs.io/ipfs/QmSAkc3VBwcV2KnETHj7rcJWRaD6Ba81ZJCdGtz1bXHBwM
+- [[hypothesis]] https://via.hypothes.is/https://stoa.anagora.org/ipfs/QmZhvFuT6urnUG4pjJTDzmFWhTYkVpuzmJv4t9FvENLphs
 
 
 [//begin]: # "Autogenerated link references for markdown compatibility"
 [pull]: pull "Pull"
+[ttwob]: ttwob "ttwob"
 [book]: book "Book"
 [christopher alexander]: christopher-alexander "Christopher Alexander"
 [ipfs]: ipfs "Ipfs"
diff --git a/ttwob.md b/ttwob.md
new file mode 100644
index 000000000..e1f88a0f6
--- /dev/null
+++ b/ttwob.md
@@ -0,0 +1,4 @@
+# ttwob
+
+- [[pull]] [[the-timeless-way-of-building]]
+