Researcher, developer, author. -Created #OpenAPS, “PERT Pilot”, “Carb Pilot”. -Moderated #hcsm. -Wrote #APSBook (http://ArtificialPancreasBook.com) + others. - Blog & research & more: DIYPS.orghttps://bsky.app/profile/danamlewis.bsky.socialhttps://bsky.app/profile/danamlewis.bsky.social/post/3mtep5jyiq22xAdded some more improvements to BookPilot - you can run some of the key scripts (import csv, run the lookup, etc) from the webpage now. Plus, new features to make marking series as read and finding uncompleted series easier. https://bsky.app/profile/danamlewis.bsky.social/post/3mf6pgothvc2c [contains quote post or other embedded content]18 Aug 2026 17:04 +0000at://did:plc:ds2g33zosaclqsljkdfbcyfw/app.bsky.feed.post/3mtep5jyiq22xhttps://bsky.app/profile/danamlewis.bsky.social/post/3mnijw5wpds2kThere’s a new good study on what dose of gluten exposure triggers an immune response in people with celiac. I wrote about that and how it helps me refine my ‘algorithm’ for deciding what to eat as a person with celiac: https://diyps.org/2026/06/04/a-heuristic-approach-to-deciding-what-is-safe-to-eat-with-celiac-disease/04 Jun 2026 21:10 +0000at://did:plc:ds2g33zosaclqsljkdfbcyfw/app.bsky.feed.post/3mnijw5wpds2khttps://bsky.app/profile/danamlewis.bsky.social/post/3mjwuk5emcs2zPS -  if you’re curious about some of my perspective, you can read about it here: https://diyps.org/2026/04/16/the-data-we-are-leaving-behind-in-clinical-trials-what-it-costs-us-and-why-we-should-talk-about-it/ (I’m hoping to provoke disagreement - see where you disagree! And then if you’re free on 4/28 come join the @ctti-trials.bsky.social discussion about it) 👇🏼 [contains quote post or other embedded content]20 Apr 2026 16:16 +0000at://did:plc:ds2g33zosaclqsljkdfbcyfw/app.bsky.feed.post/3mjwuk5emcs2zhttps://bsky.app/profile/danamlewis.bsky.social/post/3mjsafdwo422l1/ What if the topic of AI use in clinical trials, and data re-use beyond the initial clinical trial, are two parts of the same conversation? (Spoiler: they are!) But I don’t see either talked about enough, which is why I appreciate @ctti-trials.bsky.social hosting a summit to discuss these:18 Apr 2026 20:05 +0000at://did:plc:ds2g33zosaclqsljkdfbcyfw/app.bsky.feed.post/3mjsafdwo422lhttps://bsky.app/profile/danamlewis.bsky.social/post/3mg7cwkzvvs2wResearcher here who gets VERY excited when people email for paper access! Also, authors can usually post author copies to their own sites (even if journal site is paywalled!). I do - you’ll find links to all mine via DIYPS.org/research But you can also always email 🥰 [contains quote post or other embedded content]04 Mar 2026 03:14 +0000at://did:plc:ds2g33zosaclqsljkdfbcyfw/app.bsky.feed.post/3mg7cwkzvvs2whttps://bsky.app/profile/danamlewis.bsky.social/post/3mfvhtjaex226PERT Pilot (iOS) update! It, too, now has the recipe builder feature and you can now send - or receive! - meals and recipes from either PERT Pilot and Carb Pilot. 🎉 PERT Pilot is designed for tracking pancreatic enzyme replacement therapy, for those of us with EPI (PEI).28 Feb 2026 05:15 +0000at://did:plc:ds2g33zosaclqsljkdfbcyfw/app.bsky.feed.post/3mfvhtjaex226https://bsky.app/profile/danamlewis.bsky.social/post/3mfryjcfzgk2cJust pushed a new version of Carb Pilot 🎉 with a new feature: a recipe builder (which gives you the ability to adjust your estimates by each ingredient, plus designate portion sizes). Would love feedback if you try it out! (And share any other feature requests). Plus… 👇🏼26 Feb 2026 20:03 +0000at://did:plc:ds2g33zosaclqsljkdfbcyfw/app.bsky.feed.post/3mfryjcfzgk2chttps://bsky.app/profile/danamlewis.bsky.social/post/3mf6paxwa6k2cSharing some of how I use LLMs - which ones, how that has changed over time, and about a remote prompting tool I put together: https://diyps.org/2026/02/17/which-llms-and-how-i-am-using-them-as-of-february-2026-plus-a-remote-llm-prompting-tool/19 Feb 2026 03:57 +0000at://did:plc:ds2g33zosaclqsljkdfbcyfw/app.bsky.feed.post/3mf6paxwa6k2chttps://bsky.app/profile/danamlewis.bsky.social/post/3mehqhppvbk2yMeta-thoughts about software-shaped feelings after solving for last week’s software-shaped feeling: https://diyps.org/2026/02/09/software-shaped-feelings/10 Feb 2026 00:47 +0000at://did:plc:ds2g33zosaclqsljkdfbcyfw/app.bsky.feed.post/3mehqhppvbk2yhttps://bsky.app/profile/danamlewis.bsky.social/post/3md2dtmezgs2uTrying to increase my cycle of doing/building and sharing it out, even if it’s not “done” or perfect to my standards. Not every custom software I like needs to be used by someone else, but it’s worth sharing in case there is a(nother) need for it. It might spur other ideas or others to build, too!22 Jan 2026 23:32 +0000at://did:plc:ds2g33zosaclqsljkdfbcyfw/app.bsky.feed.post/3md2dtmezgs2uhttps://bsky.app/profile/danamlewis.bsky.social/post/3mcptqrb2r22fThe intersection between “what should I read next?” and being someone who reads a lot means it would be nice to have something to recommend new books that takes into account what I have already read. …and now I have that! I called it “BookPilot”: https://diyps.org/2026/01/18/bookpilot-what-should-i-read-next/18 Jan 2026 19:17 +0000at://did:plc:ds2g33zosaclqsljkdfbcyfw/app.bsky.feed.post/3mcptqrb2r22fhttps://bsky.app/profile/danamlewis.bsky.social/post/3m6fniorc7c2j‘Tis the season…don’t forget you can consider situational masking, even if you don’t choose to mask in everyday life / lower risk situations. Planes, trains, shared automobiles, conferences and conference rooms… 👇🏼 here’s some data for informed choices: https://diyps.org/2023/06/07/air-quality-co2-monitoring-and-situational-masking/24 Nov 2025 20:18 +0000at://did:plc:ds2g33zosaclqsljkdfbcyfw/app.bsky.feed.post/3m6fniorc7c2jhttps://bsky.app/profile/danamlewis.bsky.social/post/3m6fniorc7c2j‘Tis the season…don’t forget you can consider situational masking, even if you don’t choose to mask in everyday life / lower risk situations. Planes, trains, shared automobiles, conferences and conference rooms… 👇🏼 here’s some data for informed choices: https://diyps.org/2023/06/07/air-quality-co2-monitoring-and-situational-masking/24 Nov 2025 20:18 +0000at://did:plc:ds2g33zosaclqsljkdfbcyfw/app.bsky.feed.post/3m6fniorc7c2jhttps://bsky.app/profile/danamlewis.bsky.social/post/3lxznl3bi322dIf the smoke in the air is bothering you: Reminder that an n95 mask can help (and you can wear one outside to reduce exposure). For inside, if you don’t have an air purifier, a furnace filter taped onto a box fan can help clean your indoor air.04 Sep 2025 17:16 +0000at://did:plc:ds2g33zosaclqsljkdfbcyfw/app.bsky.feed.post/3lxznl3bi322dhttps://bsky.app/profile/danamlewis.bsky.social/post/3lwuqgageqc24This is one of the things we have to talk about (real world clinical practice is translating very slowly on the basis of new evidence). If you have an IUD or are considering getting one, read about paracervical blocks & ask your provider about it. https://diyps.org/2025/05/29/iud-insertion-or-iud-replacement-is-more-manageable-with-a-paracervical-block/21 Aug 2025 00:59 +0000at://did:plc:ds2g33zosaclqsljkdfbcyfw/app.bsky.feed.post/3lwuqgageqc24https://bsky.app/profile/danamlewis.bsky.social/post/3lwcgv7tvcs2qNew open-access research on a new symptom score for exocrine pancreatic insufficiency - the EPI/PEI-SS. An n=324 study analyzed this symptom score in people with EPI and in the general population (without EPI). Read the open access paper here (https://doi.org/10.3390/epidemiologia6030048), or skim this summary below 👇🏼13 Aug 2025 18:20 +0000at://did:plc:ds2g33zosaclqsljkdfbcyfw/app.bsky.feed.post/3lwcgv7tvcs2q