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Documents authored by Clorius, Lucas

Document
DOI: 10.4230/LIPIcs.ECOOP.2026.7
Compositional Design, Implementation, and Verification of Swarms

Authors: Florian Furbach, Lucas Clorius, Roland Kuhn, Hernán Melgratti, Alceste Scalas, and Emilio Tuosto

Published in: LIPIcs, Volume 372, 40th European Conference on Object-Oriented Programming (ECOOP 2026)

Abstract
Swarm protocols are a recently introduced formalism for specifying, implementing, and verifying peer-to-peer systems called swarms. A swarm consists of distributed agents called machines that communicate by asynchronous event propagation. Following a local-first model, each machine can progress without requiring continuous connectivity to other machines. Existing models of swarms are not compositional, making the modular development of large and complex swarm applications as well as the reuse of code difficult. We address these issues by presenting novel theory and techniques for the compositional specification, verification, and implementation of swarms. These results enable the correct compositional reuse of pre-existing swarm protocols and machine implementations. We implement these contributions in a companion software artifact which enables the automatic integration of independently designed and verified swarm components.
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Florian Furbach, Lucas Clorius, Roland Kuhn, Hernán Melgratti, Alceste Scalas, and Emilio Tuosto. Compositional Design, Implementation, and Verification of Swarms. In 40th European Conference on Object-Oriented Programming (ECOOP 2026). Leibniz International Proceedings in Informatics (LIPIcs), Volume 372, pp. 7:1-7:30, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2026)

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@InProceedings{furbach_et_al:LIPIcs.ECOOP.2026.7,
  author =	{Furbach, Florian and Clorius, Lucas and Kuhn, Roland and Melgratti, Hern\'{a}n and Scalas, Alceste and Tuosto, Emilio},
  title =	{{Compositional Design, Implementation, and Verification of Swarms}},
  booktitle =	{40th European Conference on Object-Oriented Programming (ECOOP 2026)},
  pages =	{7:1--7:30},
  series =	{Leibniz International Proceedings in Informatics (LIPIcs)},
  ISBN =	{978-3-95977-423-9},
  ISSN =	{1868-8969},
  year =	{2026},
  volume =	{372},
  editor =	{Krebbers, Robbert and Silva, Alexandra},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/LIPIcs.ECOOP.2026.7},
  URN =		{urn:nbn:de:0030-drops-261036},
  doi =		{10.4230/LIPIcs.ECOOP.2026.7},
  annote =	{Keywords: Swarms, Swarm Protocols, Concurrency, Distributed Coordination, Local-first Software, Behavioural Types, Publish-Subscribe, Asynchronous Communication}
}
Document
Artifact
DOI: 10.4230/DARTS.12.1.18
Compositional Design, Implementation, and Verification of Swarms (Artifact)

Authors: Lucas Clorius, Florian Furbach, Roland Kuhn, Hernán Melgratti, Alceste Scalas, and Emilio Tuosto

Published in: DARTS, Volume 12, Issue 1, Special Issue of the 40th European Conference on Object-Oriented Programming (ECOOP 2026)

Abstract
This is the companion artifact of the paper titled "Compositional Design, Implementation, and Verification of Swarms" (ECOOP'26). This artifact contains an extension of the open-source Actyx toolkit that implements the theoretical results in the paper. It also includes scripts to reproduce all experiments and claims in Section 6 of the paper, as well as documentation on the usage of our extended Actyx toolkit via various examples.
Cite as

Lucas Clorius, Florian Furbach, Roland Kuhn, Hernán Melgratti, Alceste Scalas, and Emilio Tuosto. Compositional Design, Implementation, and Verification of Swarms (Artifact). In Special Issue of the 40th European Conference on Object-Oriented Programming (ECOOP 2026). Dagstuhl Artifacts Series (DARTS), Volume 12, Issue 1, pp. 18:1-18:3, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2026)

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@Article{clorius_et_al:DARTS.12.1.18,
  author =	{Clorius, Lucas and Furbach, Florian and Kuhn, Roland and Melgratti, Hern\'{a}n and Scalas, Alceste and Tuosto, Emilio},
  title =	{{Compositional Design, Implementation, and Verification of Swarms (Artifact)}},
  pages =	{18:1--18:3},
  journal =	{Dagstuhl Artifacts Series},
  ISSN =	{2509-8195},
  year =	{2026},
  volume =	{12},
  number =	{1},
  editor =	{Clorius, Lucas and Furbach, Florian and Kuhn, Roland and Melgratti, Hern\'{a}n and Scalas, Alceste and Tuosto, Emilio},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/DARTS.12.1.18},
  URN =		{urn:nbn:de:0030-drops-261559},
  doi =		{10.4230/DARTS.12.1.18},
  annote =	{Keywords: Swarms, Swarm Protocols, Concurrency, Distributed Coordination, Local-first Software, Behavioural Types, Publish-Subscribe, Asynchronous Communication}
}
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