Expanding Fantom Foundation structure
In this article, we will quickly recap what we, the Serotonin Syndrome team, have done during the hackathons, and as a part of the larger Offscale.io team on GitHub.

- Register-based virtual machine
During the Serial Hacking 2018: November, we have developed, a suite consisting of:
* a specification of a register-based VM and bytecode format for it,
* the VM itself,
* a translator from LLVM IR to our bytecode format,
* a disassembler to a human-readable text representation,
* Fantom Smart Contract IDE, a web interface for interactive development experience.
Repository: https://github.com/Serotonin-Syndrome/serial_hacking_fantom_rbvm
2. (We mentored a team that has done) A graph visualization tool for the Fantom network
During the Serial Hacking 2018: December, we mentored a team of Igor Evdokimov, Zeeshan Yousaf and others; they have built a visualizer that shows how a given smart contract changes the network in a very comfortable, user-friendly form. It is useful not only for developers, but also for users, because it enables anyone to check and ensure that everything works correctly and the system is safe.
Repository: https://github.com/Serotonin-Syndrome/smart_contracts_graph
3. (We mentored a team that has done) Resource analyser for LLVM IR & plugin for VS Code.
During the Serial Hacking 2018: December, we mentored a team of Leonid Zharikov and Mikhail Plakhov; they have build a resource analyzer: given a smart contract, it predicts its resource usage (memory and cost). Each instruction has a configurable cost so that a change in VM architecture can be easily accounted for. Also, a plugin for VS Code has been developed.
Repository: https://github.com/Serotonin-Syndrome/resource_analyser
4. Traffic replay tool
During the Serial Hacking: the Grand Finale, we have build a traffic record/replay tool. This is, we believe, the most technologically complex solution of all. It is intended to aid in debugging complex concurrent networks, such as blockchains and blockchain-like systems, consensus protocols, etc. It utilizes Linux namespaces and TUN devices. The more detailed description can be found in the README.
Repository: https://github.com/Fantom-foundation/tun-replay
5. Blomp, a Blockchain Bombarding tool
It can bombard various blockchains with transactions and mearure things such as TPS, CPU usage and memory usage.
Repository: https://github.com/Fantom-foundation/bombarding-tool
6. On-boarding experience
Began to integrate our solutions with the existing Fantom infrastructure: https://github.com/Fantom-foundation/full-cli-rs/tree/tester
Fixed some obscure error in libtransport-tcp: https://github.com/Fantom-foundation/libtransport-tcp/commit/a2db8a0b1b975b91b603c8fe233b378d5b2207df
Done some minor fixes/improvements:
https://github.com/Fantom-foundation/evm-rs/commit/7994efa8a77fe5b03c14cc17ec0503e9e0856ae6
https://github.com/Fantom-foundation/evm-rs/commit/f93ea7d5760c7778ff4f40cedb81bcf11899c42e
https://github.com/Fantom-foundation/evm-rs/commit/484936aea9c507e3c57a2b418f4b7d1df89b903b
https://github.com/Fantom-foundation/libvm/commit/cc284d48a3567322a62d146b14f6abc4b46791cb
https://github.com/Fantom-foundation/libvm/commit/1ff31e5c65a3e2e861eab2080be3f9e47dd67fae
https://github.com/Fantom-foundation/libvm/commit/615778956f1c680098e0977a0b178a880180c140
https://github.com/Fantom-foundation/full-cli-rs/commit/67608558f6bb60ba1d7cc7c42b32150e55daffa5
https://github.com/Fantom-foundation/full-cli-rs/commit/a6dbe767a827639fab88029aac4707938749228f
