diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index 85dfd0a..0ae09e3 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -34,6 +34,9 @@ add_library(sha1_ngcft1 STATIC
 	./hash_utils.hpp
 	./hash_utils.cpp
 
+	./ft1_sha1_info.hpp
+	./ft1_sha1_info.cpp
+
 	./sha1_ngcft1.hpp
 	./sha1_ngcft1.cpp
 )
diff --git a/src/ft1_sha1_info.cpp b/src/ft1_sha1_info.cpp
new file mode 100644
index 0000000..f809b93
--- /dev/null
+++ b/src/ft1_sha1_info.cpp
@@ -0,0 +1,130 @@
+#include "./ft1_sha1_info.hpp"
+
+#include <sodium.h>
+
+SHA1Digest::SHA1Digest(const std::vector<uint8_t>& v) {
+	assert(v.size() == data.size());
+	for (size_t i = 0; i < data.size(); i++) {
+		data[i] = v[i];
+	}
+}
+
+SHA1Digest::SHA1Digest(const uint8_t* d, size_t s) {
+	assert(s == data.size());
+	for (size_t i = 0; i < data.size(); i++) {
+		data[i] = d[i];
+	}
+}
+
+std::ostream& operator<<(std::ostream& out, const SHA1Digest& v) {
+	std::string str{};
+	str.resize(v.size()*2, '?');
+
+	// HECK, std is 1 larger than size returns ('\0')
+	sodium_bin2hex(str.data(), str.size()+1, v.data.data(), v.data.size());
+
+	out << str;
+
+	return out;
+}
+
+std::vector<uint8_t> FT1InfoSHA1::toBuffer(void) const {
+	std::vector<uint8_t> buffer;
+
+	assert(!file_name.empty());
+	// TODO: optimize
+	for (size_t i = 0; i < 256; i++) {
+		if (i < file_name.size()) {
+			buffer.push_back(file_name.at(i));
+		} else {
+			buffer.push_back(0);
+		}
+	}
+	assert(buffer.size() == 256);
+
+	{ // HACK: endianess
+		buffer.push_back((file_size>>(0*8)) & 0xff);
+		buffer.push_back((file_size>>(1*8)) & 0xff);
+		buffer.push_back((file_size>>(2*8)) & 0xff);
+		buffer.push_back((file_size>>(3*8)) & 0xff);
+		buffer.push_back((file_size>>(4*8)) & 0xff);
+		buffer.push_back((file_size>>(5*8)) & 0xff);
+		buffer.push_back((file_size>>(6*8)) & 0xff);
+		buffer.push_back((file_size>>(7*8)) & 0xff);
+	}
+	assert(buffer.size() == 256+8);
+
+	// chunk size
+	{ // HACK: endianess
+		buffer.push_back((chunk_size>>(0*8)) & 0xff);
+		buffer.push_back((chunk_size>>(1*8)) & 0xff);
+		buffer.push_back((chunk_size>>(2*8)) & 0xff);
+		buffer.push_back((chunk_size>>(3*8)) & 0xff);
+	}
+
+	assert(buffer.size() == 256+8+4);
+
+	for (const auto& chunk : chunks) {
+		for (size_t i = 0; i < chunk.data.size(); i++) {
+			buffer.push_back(chunk.data[i]);
+		}
+	}
+	assert(buffer.size() == 256+8+4+20*chunks.size());
+
+	return buffer;
+}
+
+void FT1InfoSHA1::fromBuffer(const std::vector<uint8_t>& buffer) {
+	assert(buffer.size() >= 256+8+4);
+
+	// TODO: optimize
+	file_name.clear();
+	for (size_t i = 0; i < 256; i++) {
+		char next_char = static_cast<char>(buffer[i]);
+		if (next_char == 0) {
+			break;
+		}
+		file_name.push_back(next_char);
+	}
+
+	{ // HACK: endianess
+		file_size = 0;
+		file_size |= uint64_t(buffer[256+0]) << (0*8);
+		file_size |= uint64_t(buffer[256+1]) << (1*8);
+		file_size |= uint64_t(buffer[256+2]) << (2*8);
+		file_size |= uint64_t(buffer[256+3]) << (3*8);
+		file_size |= uint64_t(buffer[256+4]) << (4*8);
+		file_size |= uint64_t(buffer[256+5]) << (5*8);
+		file_size |= uint64_t(buffer[256+6]) << (6*8);
+		file_size |= uint64_t(buffer[256+7]) << (7*8);
+	}
+
+	{ // HACK: endianess
+		chunk_size = 0;
+		chunk_size |= uint32_t(buffer[256+8+0]) << (0*8);
+		chunk_size |= uint32_t(buffer[256+8+1]) << (1*8);
+		chunk_size |= uint32_t(buffer[256+8+2]) << (2*8);
+		chunk_size |= uint32_t(buffer[256+8+3]) << (3*8);
+	}
+
+	assert((buffer.size()-(256+8+4)) % 20 == 0);
+
+	for (size_t offset = 256+8+4; offset < buffer.size();) {
+		assert(buffer.size() >= offset + 20);
+
+		auto& chunk = chunks.emplace_back();
+		for (size_t i = 0; i < chunk.size(); i++, offset++) {
+			chunk.data[i] = buffer.at(offset);
+		}
+		// TODO: error/leftover checking
+	}
+}
+
+std::ostream& operator<<(std::ostream& out, const FT1InfoSHA1& v) {
+	out << "  file_name: " << v.file_name << "\n";
+	out << "  file_size: " << v.file_size << "\n";
+	out << "  chunk_size: " << v.chunk_size << "\n";
+	out << "  chunks.size(): " << v.chunks.size() << "\n";
+	return out;
+}
+
diff --git a/src/ft1_sha1_info.hpp b/src/ft1_sha1_info.hpp
new file mode 100644
index 0000000..c7c9bbe
--- /dev/null
+++ b/src/ft1_sha1_info.hpp
@@ -0,0 +1,53 @@
+#pragma once
+
+#include <cstddef>
+#include <cstdint>
+#include <array>
+#include <ostream>
+#include <vector>
+#include <cassert>
+#include <string>
+
+struct SHA1Digest {
+	std::array<uint8_t, 20> data;
+
+	SHA1Digest(void) = default;
+	SHA1Digest(const std::vector<uint8_t>& v);
+	SHA1Digest(const uint8_t* d, size_t s);
+
+	bool operator==(const SHA1Digest& other) const { return data == other.data; }
+	bool operator!=(const SHA1Digest& other) const { return data != other.data; }
+
+	size_t size(void) const { return data.size(); }
+};
+
+std::ostream& operator<<(std::ostream& out, const SHA1Digest& v);
+
+namespace std { // inject
+	template<> struct hash<SHA1Digest> {
+		std::size_t operator()(const SHA1Digest& h) const noexcept {
+			return
+				size_t(h.data[0]) << (0*8) |
+				size_t(h.data[1]) << (1*8) |
+				size_t(h.data[2]) << (2*8) |
+				size_t(h.data[3]) << (3*8) |
+				size_t(h.data[4]) << (4*8) |
+				size_t(h.data[5]) << (5*8) |
+				size_t(h.data[6]) << (6*8) |
+				size_t(h.data[7]) << (7*8)
+			;
+		}
+	};
+} // std
+
+struct FT1InfoSHA1 {
+	std::string file_name;
+	uint64_t file_size {0};
+	uint32_t chunk_size {128*1024}; // 128KiB for now
+	std::vector<SHA1Digest> chunks;
+
+	std::vector<uint8_t> toBuffer(void) const;
+	void fromBuffer(const std::vector<uint8_t>& buffer);
+};
+std::ostream& operator<<(std::ostream& out, const FT1InfoSHA1& v);
+
diff --git a/src/ngcft1.cpp b/src/ngcft1.cpp
index 5ef1fbd..69fdd22 100644
--- a/src/ngcft1.cpp
+++ b/src/ngcft1.cpp
@@ -550,7 +550,7 @@ bool NGCFT1::onEvent(const Events::NGCEXT_ft1_data_ack& e) {
 
 	// delete if all packets acked
 	if (transfer.file_size == transfer.file_size_current && transfer.ssb.size() == 0) {
-		std::cout << "NGCFT1: " << e.transfer_id << " done\n";
+		std::cout << "NGCFT1: " << int(e.transfer_id) << " done\n";
 		peer.send_transfers[e.transfer_id].reset();
 	}
 
diff --git a/src/plugin_ngcft1.cpp b/src/plugin_ngcft1.cpp
index f50faad..7d6766a 100644
--- a/src/plugin_ngcft1.cpp
+++ b/src/plugin_ngcft1.cpp
@@ -7,9 +7,6 @@
 #include <memory>
 #include <iostream>
 
-// fwd
-//class RegMessageModel;
-
 #define RESOLVE_INSTANCE(x) static_cast<x*>(solana_api->resolveInstance(#x))
 #define PROVIDE_INSTANCE(x, p, v) solana_api->provideInstance(#x, p, static_cast<x*>(v))
 
@@ -37,12 +34,14 @@ SOLANA_PLUGIN_EXPORT uint32_t solana_plugin_start(struct SolanaAPI* solana_api)
 
 	ToxI* tox_i = nullptr;
 	ToxEventProviderI* tox_event_provider_i = nullptr;
+	Contact3Registry* cr = nullptr;
 	RegistryMessageModel* rmm = nullptr;
 	ToxContactModel2* tcm = nullptr;
 
 	{ // make sure required types are loaded
 		tox_i = RESOLVE_INSTANCE(ToxI);
 		tox_event_provider_i = RESOLVE_INSTANCE(ToxEventProviderI);
+		cr = RESOLVE_INSTANCE(Contact3Registry);
 		rmm = RESOLVE_INSTANCE(RegistryMessageModel);
 		tcm = RESOLVE_INSTANCE(ToxContactModel2);
 
@@ -56,6 +55,11 @@ SOLANA_PLUGIN_EXPORT uint32_t solana_plugin_start(struct SolanaAPI* solana_api)
 			return 2;
 		}
 
+		if (cr == nullptr) {
+			std::cerr << "PLUGIN NGCEXT missing Contact3Registry\n";
+			return 2;
+		}
+
 		if (rmm == nullptr) {
 			std::cerr << "PLUGIN NGCEXT missing RegistryMessageModel\n";
 			return 2;
@@ -71,7 +75,7 @@ SOLANA_PLUGIN_EXPORT uint32_t solana_plugin_start(struct SolanaAPI* solana_api)
 	// construct with fetched dependencies
 	g_ngcextep = std::make_unique<NGCEXTEventProvider>(*tox_event_provider_i);
 	g_ngcft1 = std::make_unique<NGCFT1>(*tox_i, *tox_event_provider_i, *g_ngcextep.get());
-	g_sha1_ngcft1 = std::make_unique<SHA1_NGCFT1>(*rmm, *g_ngcft1.get(), *tcm);
+	g_sha1_ngcft1 = std::make_unique<SHA1_NGCFT1>(*cr, *rmm, *g_ngcft1.get(), *tcm);
 
 	// register types
 	PROVIDE_INSTANCE(NGCEXTEventProviderI, "NGCEXT", g_ngcextep.get());
diff --git a/src/sha1_ngcft1.cpp b/src/sha1_ngcft1.cpp
index d0c6751..c1fc814 100644
--- a/src/sha1_ngcft1.cpp
+++ b/src/sha1_ngcft1.cpp
@@ -2,21 +2,52 @@
 
 #include <solanaceae/toxcore/utils.hpp>
 
+#include <solanaceae/contact/components.hpp>
+#include <solanaceae/tox_contacts/components.hpp>
+#include <solanaceae/message3/components.hpp>
+
+#include <solanaceae/message3/file_r_file.hpp>
+
+#include "./ft1_sha1_info.hpp"
+#include "./hash_utils.hpp"
+
 #include <iostream>
 
+namespace Components {
+
+	using FT1InfoSHA1 = FT1InfoSHA1;
+
+	struct FT1InfoSHA1Data {
+		std::vector<uint8_t> data;
+	};
+
+	struct FT1InfoSHA1Hash {
+		std::vector<uint8_t> hash;
+	};
+
+} // Components
+
 SHA1_NGCFT1::SHA1_NGCFT1(
+	Contact3Registry& cr,
 	RegistryMessageModel& rmm,
-	NGCFT1EventProviderI& nftep,
+	NGCFT1& nft,
 	ToxContactModel2& tcm
 ) :
+	_cr(cr),
 	_rmm(rmm),
-	_nftep(nftep),
+	_nft(nft),
 	_tcm(tcm)
 {
-	_nftep.subscribe(this, NGCFT1_Event::recv_request);
-	_nftep.subscribe(this, NGCFT1_Event::recv_init);
-	_nftep.subscribe(this, NGCFT1_Event::recv_data);
-	_nftep.subscribe(this, NGCFT1_Event::send_data);
+	_nft.subscribe(this, NGCFT1_Event::recv_request);
+	_nft.subscribe(this, NGCFT1_Event::recv_init);
+	_nft.subscribe(this, NGCFT1_Event::recv_data);
+	_nft.subscribe(this, NGCFT1_Event::send_data);
+
+	//_rmm.subscribe(this, RegistryMessageModel_Event::message_construct);
+	//_rmm.subscribe(this, RegistryMessageModel_Event::message_updated);
+	//_rmm.subscribe(this, RegistryMessageModel_Event::message_destroy);
+
+	_rmm.subscribe(this, RegistryMessageModel_Event::send_file_path);
 }
 
 bool SHA1_NGCFT1::onEvent(const Events::NGCFT1_recv_request& e) {
@@ -27,6 +58,32 @@ bool SHA1_NGCFT1::onEvent(const Events::NGCFT1_recv_request& e) {
 
 	//std::cout << "SHA1_NGCFT1: FT1_REQUEST fk:" << int(e.file_kind) << " [" << bin2hex({e.file_id, e.file_id+e.file_id_size}) << "]\n";
 
+	if (e.file_kind == NGCFT1_file_kind::HASH_SHA1_INFO) {
+		if (e.file_id_size != 20) {
+			// error
+			return false;
+		}
+
+		SHA1Digest info_hash{e.file_id, e.file_id_size};
+		if (!_info_to_message.count(info_hash)) {
+			// we dont know about this
+			return false;
+		}
+
+		auto msg = _info_to_message.at(info_hash);
+
+		assert(msg.all_of<Components::FT1InfoSHA1Data>());
+
+		// assume we have the info, send init
+		_nft.NGC_FT1_send_init_private(
+			e.group_number, e.peer_number,
+			static_cast<uint32_t>(e.file_kind),
+			e.file_id, e.file_id_size,
+			msg.get<Components::FT1InfoSHA1Data>().data.size(),
+			nullptr
+		);
+	}
+
 	return false;
 }
 
@@ -47,3 +104,113 @@ bool SHA1_NGCFT1::onEvent(const Events::NGCFT1_send_data& e) {
 	return false;
 }
 
+bool SHA1_NGCFT1::sendFilePath(const Contact3 c, std::string_view file_name, std::string_view file_path) {
+	if (
+		// TODO: add support of offline queuing
+		!_cr.all_of<Contact::Components::ToxGroupEphemeral>(c)
+	) {
+		return false;
+	}
+
+	std::cout << "SHA1_NGCFT1: got sendFilePath()\n";
+
+	auto* reg_ptr = _rmm.get(c);
+	if (reg_ptr == nullptr) {
+		return false;
+	}
+
+	// TODO: rw
+	auto file_impl = std::make_unique<FileRFile>(file_path);
+	if (!file_impl->isGood()) {
+		std::cerr << "SHA1_NGCFT1 error: failed opening file '" << file_path << "'!\n";
+		return true;
+	}
+
+	// get current time unix epoch utc
+	uint64_t ts = std::chrono::duration_cast<std::chrono::milliseconds>(std::chrono::system_clock::now().time_since_epoch()).count();
+
+	// 1. build info by hashing all chunks
+
+	FT1InfoSHA1 sha1_info;
+	// build info
+	sha1_info.file_name = file_name;
+	sha1_info.file_size = file_impl->_file_size;
+
+	{ // build chunks
+		// HACK: load file fully
+		// TODO: the speed is truly horrid
+		const auto file_data = file_impl->read(0, file_impl->_file_size);
+		size_t i = 0;
+		for (; i + sha1_info.chunk_size < file_data.size(); i += sha1_info.chunk_size) {
+			sha1_info.chunks.push_back(hash_sha1(file_data.data()+i, sha1_info.chunk_size));
+		}
+
+		if (i < file_data.size()) {
+			sha1_info.chunks.push_back(hash_sha1(file_data.data()+i, file_data.size()-i));
+		}
+	}
+
+	// 2. hash info
+	std::vector<uint8_t> sha1_info_data;
+	std::vector<uint8_t> sha1_info_hash;
+
+	std::cout << "SHA1_NGCFT1 info is: \n" << sha1_info;
+	sha1_info_data = sha1_info.toBuffer();
+	std::cout << "SHA1_NGCFT1 sha1_info size: " << sha1_info_data.size() << "\n";
+	sha1_info_hash = hash_sha1(sha1_info_data.data(), sha1_info_data.size());
+	std::cout << "SHA1_NGCFT1 sha1_info_hash: " << bin2hex(sha1_info_hash) << "\n";
+
+	const auto c_self = _cr.get<Contact::Components::Self>(c).self;
+	if (!_cr.valid(c_self)) {
+		std::cerr << "SHA1_NGCFT1 error: failed to get self!\n";
+		return true;
+	}
+
+	const auto e = reg_ptr->create();
+	reg_ptr->emplace<Message::Components::ContactTo>(e, c);
+	reg_ptr->emplace<Message::Components::ContactFrom>(e, c_self);
+	reg_ptr->emplace<Message::Components::Timestamp>(e, ts); // reactive?
+
+	reg_ptr->emplace<Message::Components::Transfer::TagHaveAll>(e);
+	reg_ptr->emplace<Message::Components::Transfer::TagSending>(e);
+
+	reg_ptr->emplace<Components::FT1InfoSHA1>(e, sha1_info);
+	reg_ptr->emplace<Components::FT1InfoSHA1Data>(e, sha1_info_data); // keep around? or file?
+	reg_ptr->emplace<Components::FT1InfoSHA1Hash>(e, sha1_info_hash);
+	_info_to_message[sha1_info_hash] = {*reg_ptr, e};
+
+	//reg_ptr->emplace<Message::Components::Transfer::FileKind>(e, file_kind);
+	// file id would be sha1_info hash or something
+	//reg_ptr->emplace<Message::Components::Transfer::FileID>(e, file_id);
+
+	{ // file info
+		auto& file_info = reg_ptr->emplace<Message::Components::Transfer::FileInfo>(e);
+		file_info.file_list.emplace_back() = {std::string{file_name}, file_impl->_file_size};
+		file_info.total_size = file_impl->_file_size;
+
+		reg_ptr->emplace<Message::Components::Transfer::FileInfoLocal>(e, std::vector{std::string{file_path}});
+	}
+
+	reg_ptr->emplace<Message::Components::Transfer::BytesSent>(e);
+
+	// TODO: determine if this is true
+	//reg_ptr->emplace<Message::Components::Transfer::TagPaused>(e);
+
+	// TODO: ft1 specific comp
+	reg_ptr->emplace<Message::Components::Transfer::File>(e, std::move(file_impl));
+#if 0
+	const auto friend_number = _cr.get<Contact::Components::ToxFriendEphemeral>(c).friend_number;
+	const auto&& [transfer_id, err] = _t.toxFileSend(friend_number, file_kind, file_impl->_file_size, file_id, file_name);
+	if (err == TOX_ERR_FILE_SEND_OK) {
+		reg_ptr->emplace<Message::Components::Transfer::ToxTransferFriend>(e, friend_number, transfer_id.value());
+		// TODO: add tag signifying init sent status?
+
+		toxFriendLookupAdd({*reg_ptr, e});
+	} // else queue?
+#endif
+
+	_rmm.throwEventConstruct(*reg_ptr, e);
+
+	return true;
+}
+
diff --git a/src/sha1_ngcft1.hpp b/src/sha1_ngcft1.hpp
index 0fc0499..0bb3774 100644
--- a/src/sha1_ngcft1.hpp
+++ b/src/sha1_ngcft1.hpp
@@ -2,29 +2,39 @@
 
 // solanaceae port of sha1 fts for NGCFT1
 
+#include <solanaceae/contact/contact_model3.hpp>
 #include <solanaceae/message3/registry_message_model.hpp>
 #include <solanaceae/tox_contacts/tox_contact_model2.hpp>
 
 #include "./ngcft1.hpp"
 
+#include "./ft1_sha1_info.hpp"
+
 class SHA1_NGCFT1 : public RegistryMessageModelEventI, public NGCFT1EventI {
+	Contact3Registry& _cr;
 	RegistryMessageModel& _rmm;
-	NGCFT1EventProviderI& _nftep;
+	NGCFT1& _nft;
 	ToxContactModel2& _tcm;
 
+	// limit this to each group?
+	entt::dense_map<SHA1Digest, Message3Handle> _info_to_message;
+
 	public:
 		SHA1_NGCFT1(
+			Contact3Registry& cr,
 			RegistryMessageModel& rmm,
-			NGCFT1EventProviderI& nftep,
+			NGCFT1& nft,
 			ToxContactModel2& tcm
 		);
 
 		//void iterate(float delta);
 
-	protected:
+	protected: // events
 		bool onEvent(const Events::NGCFT1_recv_request&) override;
 		bool onEvent(const Events::NGCFT1_recv_init&) override;
 		bool onEvent(const Events::NGCFT1_recv_data&) override;
 		bool onEvent(const Events::NGCFT1_send_data&) override; // const?
+
+		bool sendFilePath(const Contact3 c, std::string_view file_name, std::string_view file_path) override;
 };