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diff --git a/Cargo.toml b/Cargo.toml
new file mode 100644
index 0000000..06a5c28
--- /dev/null
+++ b/Cargo.toml
@@ -0,0 +1,12 @@
+[package]
+name = "seeding"
+version = "0.1.0"
+edition = "2021"
+
+[dependencies]
+anyhow = "1.0.66"
+parity-scale-codec = "3.2.1"
+sp-core = "7.0.0"
+subxt = "0.25.0"
+hex = "0.4.3"
+regex = "1.7.0"
diff --git a/src/main.rs b/src/main.rs
new file mode 100644
index 0000000..468f67c
--- /dev/null
+++ b/src/main.rs
@@ -0,0 +1,91 @@
+#[subxt::subxt(runtime_metadata_url = "wss://kusama-rpc.polkadot.io:443")]
+pub mod kusama {
+    #[subxt(substitute_type = "sp_runtime::multiaddress::MultiAddress")]
+    use ::subxt::ext::sp_runtime::MultiAddress;
+}
+
+use anyhow::Result;
+use kusama::runtime_types::{
+    kusama_runtime::RuntimeCall, pallet_collective::pallet::Call as TechnicalCommitteeCall,
+    pallet_ranked_collective::pallet::Call as CollectiveCall,
+    pallet_utility::pallet::Call as UtilityCall,
+};
+use parity_scale_codec::Encode as _;
+use std::io::BufRead;
+use std::{fs, io, str::FromStr as _};
+use subxt::ext::sp_core;
+use subxt::ext::sp_runtime::{AccountId32, MultiAddress};
+
+fn main() -> Result<()> {
+    let members = load_members()?;
+    assert_eq!(45, members.len());
+
+    let mut calls = Vec::new();
+
+    for member in members.iter() {
+        if member.name == "gavofyork" {
+            // gav has already been added
+            continue;
+        }
+        calls.push(RuntimeCall::FellowshipCollective(
+            CollectiveCall::add_member {
+                who: MultiAddress::Id(member.account_id.clone()),
+            },
+        ));
+        for rank in 0..member.rank {
+            // referendum required to promote to rank VII and higher
+            if rank < 6 {
+                calls.push(RuntimeCall::FellowshipCollective(
+                    CollectiveCall::promote_member {
+                        who: MultiAddress::Id(member.account_id.clone()),
+                    },
+                ))
+            }
+        }
+    }
+
+    let proposal = RuntimeCall::Utility(UtilityCall::batch { calls });
+    let proposal_hash = sp_core::blake2_256(&proposal.encode());
+    let length_bound = proposal.encoded_size() as u32;
+    let call = RuntimeCall::TechnicalCommittee(TechnicalCommitteeCall::propose {
+        proposal: Box::new(proposal),
+        threshold: 2,
+        length_bound,
+    });
+
+    let bytes = call.encode();
+
+    println!("Call data: 0x{}", hex::encode(bytes));
+    println!("Proposal hash: 0x{}", hex::encode(proposal_hash));
+
+    Ok(())
+}
+
+#[derive(Debug)]
+struct Member {
+    name: String,
+    account_id: AccountId32,
+    rank: u8,
+}
+
+fn load_members() -> Result<Vec<Member>> {
+    let mut members = Vec::new();
+
+    let regex = regex::Regex::new(r#"\| \[(.*)\].*\| `(.*)` \| (\d) \|"#)?;
+    let readme = fs::File::open("./README.md")?;
+    for line in io::BufReader::new(readme).lines() {
+        if let Some(captures) = regex.captures(&line?) {
+            let name = captures[1].to_owned();
+            let account_id = &captures[2];
+            let account_id = AccountId32::from_str(account_id)
+                .map_err(|e| anyhow::anyhow!("Error parsing account id {}: {}", account_id, e))?;
+            let rank = u8::from_str(&captures[3])?;
+            members.push(Member {
+                name,
+                account_id,
+                rank,
+            })
+        }
+    }
+    Ok(members)
+}