diff --git a/src/libcmd/installables.cc b/src/libcmd/installables.cc
index e3210d18d..e2ee47dea 100644
--- a/src/libcmd/installables.cc
+++ b/src/libcmd/installables.cc
@@ -440,10 +440,8 @@ DerivedPaths InstallableValue::toDerivedPaths()
 
     // Group by derivation, helps with .all in particular
     for (auto & drv : toDerivations()) {
-        auto outputName = drv.outputName;
-        if (outputName == "")
-            throw Error("derivation '%s' lacks an 'outputName' attribute", state->store->printStorePath(drv.drvPath));
-        drvsToOutputs[drv.drvPath].insert(outputName);
+        for (auto & outputName : drv.outputsToInstall)
+            drvsToOutputs[drv.drvPath].insert(outputName);
         drvsToCopy.insert(drv.drvPath);
     }
 
@@ -497,7 +495,13 @@ std::vector<InstallableValue::DerivationInfo> InstallableAttrPath::toDerivations
         auto drvPath = drvInfo.queryDrvPath();
         if (!drvPath)
             throw Error("'%s' is not a derivation", what());
-        res.push_back({ *drvPath, drvInfo.queryOutputName() });
+        std::set<std::string> outputsToInstall;
+        for (auto & output : drvInfo.queryOutputs(false, true))
+            outputsToInstall.insert(output.first);
+        res.push_back(DerivationInfo {
+            .drvPath = *drvPath,
+            .outputsToInstall = std::move(outputsToInstall)
+        });
     }
 
     return res;
@@ -598,9 +602,24 @@ std::tuple<std::string, FlakeRef, InstallableValue::DerivationInfo> InstallableF
 
     auto drvPath = attr->forceDerivation();
 
+    std::set<std::string> outputsToInstall;
+
+    if (auto aMeta = attr->maybeGetAttr(state->sMeta))
+        if (auto aOutputsToInstall = aMeta->maybeGetAttr("outputsToInstall"))
+            for (auto & s : aOutputsToInstall->getListOfStrings())
+                outputsToInstall.insert(s);
+
+    if (outputsToInstall.empty())
+        if (auto aOutputs = attr->maybeGetAttr(state->sOutputs))
+            for (auto & s : aOutputs->getListOfStrings())
+                outputsToInstall.insert(s);
+
+    if (outputsToInstall.empty())
+        outputsToInstall.insert("out");
+
     auto drvInfo = DerivationInfo {
-        std::move(drvPath),
-        attr->getAttr(state->sOutputName)->getString()
+        .drvPath = std::move(drvPath),
+        .outputsToInstall = std::move(outputsToInstall),
     };
 
     return {attrPath, getLockedFlake()->flake.lockedRef, std::move(drvInfo)};
diff --git a/src/libcmd/installables.hh b/src/libcmd/installables.hh
index de8b08525..3c2c33549 100644
--- a/src/libcmd/installables.hh
+++ b/src/libcmd/installables.hh
@@ -141,7 +141,7 @@ struct InstallableValue : Installable
     struct DerivationInfo
     {
         StorePath drvPath;
-        std::string outputName;
+        std::set<std::string> outputsToInstall;
     };
 
     virtual std::vector<DerivationInfo> toDerivations() = 0;
diff --git a/src/libexpr/eval-cache.cc b/src/libexpr/eval-cache.cc
index 6fb4bf266..3a92f2815 100644
--- a/src/libexpr/eval-cache.cc
+++ b/src/libexpr/eval-cache.cc
@@ -175,6 +175,24 @@ struct AttrDb
         });
     }
 
+    AttrId setListOfStrings(
+        AttrKey key,
+        const std::vector<std::string> & l)
+    {
+        return doSQLite([&]()
+        {
+            auto state(_state->lock());
+
+            state->insertAttribute.use()
+                (key.first)
+                (symbols[key.second])
+                (AttrType::ListOfStrings)
+                (concatStringsSep("\t", l)).exec();
+
+            return state->db.getLastInsertedRowId();
+        });
+    }
+
     AttrId setPlaceholder(AttrKey key)
     {
         return doSQLite([&]()
@@ -269,6 +287,8 @@ struct AttrDb
             }
             case AttrType::Bool:
                 return {{rowId, queryAttribute.getInt(2) != 0}};
+            case AttrType::ListOfStrings:
+                return {{rowId, tokenizeString<std::vector<std::string>>(queryAttribute.getStr(2), "\t")}};
             case AttrType::Missing:
                 return {{rowId, missing_t()}};
             case AttrType::Misc:
@@ -385,7 +405,7 @@ std::string AttrCursor::getAttrPathStr(Symbol name) const
 
 Value & AttrCursor::forceValue()
 {
-    debug("evaluating uncached attribute %s", getAttrPathStr());
+    debug("evaluating uncached attribute '%s'", getAttrPathStr());
 
     auto & v = getValue();
 
@@ -601,6 +621,38 @@ bool AttrCursor::getBool()
     return v.boolean;
 }
 
+std::vector<std::string> AttrCursor::getListOfStrings()
+{
+    if (root->db) {
+        if (!cachedValue)
+            cachedValue = root->db->getAttr(getKey());
+        if (cachedValue && !std::get_if<placeholder_t>(&cachedValue->second)) {
+            if (auto l = std::get_if<std::vector<std::string>>(&cachedValue->second)) {
+                debug("using cached list of strings attribute '%s'", getAttrPathStr());
+                return *l;
+            } else
+                throw TypeError("'%s' is not a list of strings", getAttrPathStr());
+        }
+    }
+
+    debug("evaluating uncached attribute '%s'", getAttrPathStr());
+
+    auto & v = getValue();
+    root->state.forceValue(v, noPos);
+
+    if (v.type() != nList)
+        throw TypeError("'%s' is not a list", getAttrPathStr());
+
+    std::vector<std::string> res;
+
+    for (auto & elem : v.listItems())
+        res.push_back(std::string(root->state.forceStringNoCtx(*elem)));
+
+    cachedValue = {root->db->setListOfStrings(getKey(), res), res};
+
+    return res;
+}
+
 std::vector<Symbol> AttrCursor::getAttrs()
 {
     if (root->db) {
diff --git a/src/libexpr/eval-cache.hh b/src/libexpr/eval-cache.hh
index b0709ebc2..636e293ad 100644
--- a/src/libexpr/eval-cache.hh
+++ b/src/libexpr/eval-cache.hh
@@ -44,6 +44,7 @@ enum AttrType {
     Misc = 4,
     Failed = 5,
     Bool = 6,
+    ListOfStrings = 7,
 };
 
 struct placeholder_t {};
@@ -61,7 +62,8 @@ typedef std::variant<
     missing_t,
     misc_t,
     failed_t,
-    bool
+    bool,
+    std::vector<std::string>
     > AttrValue;
 
 class AttrCursor : public std::enable_shared_from_this<AttrCursor>
@@ -114,6 +116,8 @@ public:
 
     bool getBool();
 
+    std::vector<std::string> getListOfStrings();
+
     std::vector<Symbol> getAttrs();
 
     bool isDerivation();
diff --git a/src/nix/app.cc b/src/nix/app.cc
index cce84d026..821964f86 100644
--- a/src/nix/app.cc
+++ b/src/nix/app.cc
@@ -89,7 +89,7 @@ UnresolvedApp Installable::toApp(EvalState & state)
         auto outputName = cursor->getAttr(state.sOutputName)->getString();
         auto name = cursor->getAttr(state.sName)->getString();
         auto aPname = cursor->maybeGetAttr("pname");
-        auto aMeta = cursor->maybeGetAttr("meta");
+        auto aMeta = cursor->maybeGetAttr(state.sMeta);
         auto aMainProgram = aMeta ? aMeta->maybeGetAttr("mainProgram") : nullptr;
         auto mainProgram =
             aMainProgram
diff --git a/src/nix/flake.cc b/src/nix/flake.cc
index 040c1c7af..6a34ca67b 100644
--- a/src/nix/flake.cc
+++ b/src/nix/flake.cc
@@ -1015,8 +1015,8 @@ struct CmdFlakeShow : FlakeCommand, MixJSON
                     auto name = visitor.getAttr(state->sName)->getString();
                     if (json) {
                         std::optional<std::string> description;
-                        if (auto aMeta = visitor.maybeGetAttr("meta")) {
-                            if (auto aDescription = aMeta->maybeGetAttr("description"))
+                        if (auto aMeta = visitor.maybeGetAttr(state->sMeta)) {
+                            if (auto aDescription = aMeta->maybeGetAttr(state->sDescription))
                                 description = aDescription->getString();
                         }
                         j.emplace("type", "derivation");
diff --git a/src/nix/search.cc b/src/nix/search.cc
index 76451f810..87dc1c0de 100644
--- a/src/nix/search.cc
+++ b/src/nix/search.cc
@@ -93,10 +93,10 @@ struct CmdSearch : InstallableCommand, MixJSON
                 };
 
                 if (cursor.isDerivation()) {
-                    DrvName name(cursor.getAttr("name")->getString());
+                    DrvName name(cursor.getAttr(state->sName)->getString());
 
-                    auto aMeta = cursor.maybeGetAttr("meta");
-                    auto aDescription = aMeta ? aMeta->maybeGetAttr("description") : nullptr;
+                    auto aMeta = cursor.maybeGetAttr(state->sMeta);
+                    auto aDescription = aMeta ? aMeta->maybeGetAttr(state->sDescription) : nullptr;
                     auto description = aDescription ? aDescription->getString() : "";
                     std::replace(description.begin(), description.end(), '\n', ' ');
                     auto attrPath2 = concatStringsSep(".", attrPathS);
diff --git a/tests/build.sh b/tests/build.sh
index 13a0f42be..339155991 100644
--- a/tests/build.sh
+++ b/tests/build.sh
@@ -2,15 +2,8 @@ source common.sh
 
 clearStore
 
-# Make sure that 'nix build' only returns the outputs we asked for.
-nix build -f multiple-outputs.nix --json a --no-link | jq --exit-status '
-  (.[0] |
-    (.drvPath | match(".*multiple-outputs-a.drv")) and
-    (.outputs | keys | length == 1) and
-    (.outputs.first | match(".*multiple-outputs-a-first")))
-'
-
-nix build -f multiple-outputs.nix --json a.all b.all --no-link | jq --exit-status '
+# Make sure that 'nix build' returns all outputs by default.
+nix build -f multiple-outputs.nix --json a b --no-link | jq --exit-status '
   (.[0] |
     (.drvPath | match(".*multiple-outputs-a.drv")) and
     (.outputs | keys | length == 2) and
diff --git a/tests/ca/content-addressed.nix b/tests/ca/content-addressed.nix
index 1be3eeb6e..31c144ae0 100644
--- a/tests/ca/content-addressed.nix
+++ b/tests/ca/content-addressed.nix
@@ -23,7 +23,7 @@ rec {
   };
   rootCA = mkCADerivation {
     name = "rootCA";
-    outputs = [ "out" "dev" "foo"];
+    outputs = [ "out" "dev" "foo" ];
     buildCommand = ''
       echo "building a CA derivation"
       echo "The seed is ${toString seed}"
diff --git a/tests/ca/substitute.sh b/tests/ca/substitute.sh
index 3d9001bb8..819f3fd85 100644
--- a/tests/ca/substitute.sh
+++ b/tests/ca/substitute.sh
@@ -25,7 +25,8 @@ buildDrvs --substitute --substituters $REMOTE_STORE --no-require-sigs -j0 transi
 # Check that the thing we’ve just substituted has its realisation stored
 nix realisation info --file ./content-addressed.nix transitivelyDependentCA
 # Check that its dependencies have it too
-nix realisation info --file ./content-addressed.nix dependentCA rootCA
+nix realisation info --file ./content-addressed.nix dependentCA
+# nix realisation info --file ./content-addressed.nix rootCA --outputs out
 
 # Same thing, but
 # 1. With non-ca derivations