add sept agenda (#43)

Closes #41

Author: josibake

_posts/2025-09-04-bitdevs-rotterdam.md

@@ -22,4 +22,20 @@ These rules exist so that BitDevs participants can speak freely within the event
 
 # Agenda
 
-TBD
+## Policy, policy, policy!
+
+* ["Stats on compact block reconstruction"](https://delvingbitcoin.org/t/stats-on-compact-block-reconstructions/1052/35)
+* ["Changing the mimimum relay feerate"](https://delvingbitcoin.org/t/changing-the-minimum-relay-feerate/1886)
+* ["#33106: policy: lower default {*}fee"](https://github.com/bitcoin/bitcoin/pull/33106)
+
+## Notable PRs / proposals
+
+* ["#32279: [IBD] store common scripts inline"](https://github.com/bitcoin/bitcoin/pull/32279) 
+* ["#38102: add bitcoin-{gui,node} to release binaries for IPC"](https://github.com/bitcoin/bitcoin/pull/31802)
+* ["#31244: musig2 descriptors"](https://github.com/bitcoin/bitcoin/pull/31244)
+
+## Research
+
+* ["Live 51% attack on Monero"](https://qubic.org/pr/qubic-overtakes-monero-s-hash-rate-in-live-51-takeover-demo)
+  * ["Qubic Attack on Monero"](https://delvingbitcoin.org/t/qubic-attack-on-monero/1920)
+* ["Wrench Attacks Research"](https://github.com/jlopp/physical-bitcoin-attacks/blob/master/Wrench_Attacks_Research.pdf)